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The Kingdom of Prussia (, ) was a German state that existed from 1701 to 1918. Marriott, J. A. R., and Charles Grant Robertson. ''The Evolution of Prussia, the Making of an Empire''. Rev. ed. Oxford: Clarendon Press, 1946. It played a significant role in the
unification of Germany The unification of Germany (, ) was a process of building the first nation-state for Germans with federalism, federal features based on the concept of Lesser Germany (one without Habsburgs' multi-ethnic Austria or its German-speaking part). I ...
in 1871 and was a major constituent of the
German Empire The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
until its dissolution in 1918. Although it took its name from the region called Prussia, it was based in the
Margraviate of Brandenburg The Margraviate of Brandenburg () was a major principality of the Holy Roman Empire from 1157 to 1806 that, having electoral status although being quite poor, grew rapidly in importance after inheriting the Duchy of Prussia in 1618 and then came ...
. Its capital was
Berlin Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...
. The
kings of Prussia The monarchs of Prussia were members of the House of Hohenzollern who were the monarch, hereditary rulers of the former German state of Prussia from its founding in 1525 as the Duchy of Prussia. The Duchy had evolved out of the State of the Teut ...
were from the
House of Hohenzollern The House of Hohenzollern (, ; , ; ) is a formerly royal (and from 1871 to 1918, imperial) German dynasty whose members were variously princes, Prince-elector, electors, kings and emperors of Hohenzollern Castle, Hohenzollern, Margraviate of Bran ...
. The
polity A polity is a group of people with a collective identity, who are organized by some form of political Institutionalisation, institutionalized social relations, and have a capacity to mobilize resources. A polity can be any group of people org ...
of Brandenburg-Prussia, predecessor of the kingdom, became a military power under
Frederick William, Elector of Brandenburg Frederick William (; 16 February 1620 – 29 April 1688) was Elector of Brandenburg and Duke of Prussia, thus ruler of Brandenburg-Prussia, from 1640 until his death in 1688. A member of the House of Hohenzollern, he is popularly known as "th ...
, known as "The Great Elector". As a kingdom, Prussia continued its rise to power, especially during the reign of Frederick II "the Great".Horn, D. B. "The Youth of Frederick the Great 1712–30." In Frederick the Great and the Rise of Prussia, 9–10. 3rd ed. London: English Universities Press, 1964. Frederick the Great was instrumental in starting the
Seven Years' War The Seven Years' War, 1756 to 1763, was a Great Power conflict fought primarily in Europe, with significant subsidiary campaigns in North America and South Asia. The protagonists were Kingdom of Great Britain, Great Britain and Kingdom of Prus ...
(1756–1763), holding his own against
Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
,
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
,
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
and
Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...
and establishing Prussia's dominant role among the German states, as well as establishing the country as a European
great power A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power ...
through the victories of the powerful Prussian Army. Prussia made attempts to unify all the German states (excluding the German cantons in
Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
) under its rule, and whether Austria would be included in such a unified German domain became an ongoing question. After the
Napoleonic Wars {{Infobox military conflict , conflict = Napoleonic Wars , partof = the French Revolutionary and Napoleonic Wars , image = Napoleonic Wars (revision).jpg , caption = Left to right, top to bottom:Battl ...
led to the creation of the
German Confederation The German Confederation ( ) was an association of 39 predominantly German-speaking sovereign states in Central Europe. It was created by the Congress of Vienna in 1815 as a replacement of the former Holy Roman Empire, which had been dissolved ...
, the issue of unifying the German states caused the
German revolutions of 1848–1849 The German revolutions of 1848–1849 (), the opening phase of which was also called the March Revolution (), were initially part of the Revolutions of 1848 that broke out in many European countries. They were a series of loosely coordinated p ...
, with representatives from all states attempting to unify under their own constitution. Attempts to create a federation remained unsuccessful and the German Confederation collapsed in 1866 when the
Austro-Prussian War The Austro-Prussian War (German: ''Preußisch-Österreichischer Krieg''), also known by many other names,Seven Weeks' War, German Civil War, Second War of Unification, Brothers War or Fraternal War, known in Germany as ("German War"), ''Deutsc ...
ensued between its two most powerful member states. Prussia was subsequently the driving force behind establishing in 1866 the
North German Confederation The North German Confederation () was initially a German military alliance established in August 1866 under the leadership of the Kingdom of Prussia, which was transformed in the subsequent year into a confederated state (a ''de facto'' feder ...
, transformed in 1871 into the unified
German Empire The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
and considered the earliest continual legal predecessor of today's Federal Republic of
Germany Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
. The North German Confederation was seen as more of an alliance of military strength in the aftermath of the Austro-Prussian War but many of its laws were later used in the German Empire. The German Empire successfully unified all of the German states aside from Austria and Switzerland under Prussian hegemony due to the defeat of
Napoleon III Napoleon III (Charles-Louis Napoléon Bonaparte; 20 April 18089 January 1873) was President of France from 1848 to 1852 and then Emperor of the French from 1852 until his deposition in 1870. He was the first president, second emperor, and last ...
in the
Franco-Prussian War The Franco-Prussian War or Franco-German War, often referred to in France as the War of 1870, was a conflict between the Second French Empire and the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 Janua ...
of 1870–1871. The war united all the German states against a common enemy, and with the victory came an overwhelming wave of nationalism which changed the opinions of some of those who had been against unification. With the
German Revolution of 1918–1919 German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...
, the Kingdom of Prussia was transformed into the
Free State of Prussia The Free State of Prussia (, ) was one of the States of the Weimar Republic, constituent states of Weimar Republic, Germany from 1918 to 1947. The successor to the Kingdom of Prussia after the defeat of the German Empire in World War I, it cont ...
. Prussia as a whole was abolished in 1947.


History


Background and establishment

The
Hohenzollerns The House of Hohenzollern (, ; , ; ) is a formerly royal (and from 1871 to 1918, imperial) German dynasty whose members were variously princes, electors, kings and emperors of Hohenzollern, Brandenburg, Prussia, the German Empire, and Romania. ...
were made rulers of the
Margraviate of Brandenburg The Margraviate of Brandenburg () was a major principality of the Holy Roman Empire from 1157 to 1806 that, having electoral status although being quite poor, grew rapidly in importance after inheriting the Duchy of Prussia in 1618 and then came ...
in 1518. In 1529, the Hohenzollerns secured the reversion of the
Duchy of Pomerania The Duchy of Pomerania (; ; Latin: ''Ducatus Pomeraniae'') was a duchy in Pomerania on the southern coast of the Baltic Sea, ruled by dukes of the House of Pomerania (''Griffins''). The country existed in the Middle Ages between years 1121–11 ...
after a series of conflicts, and acquired its eastern part following the
Peace of Westphalia The Peace of Westphalia (, ) is the collective name for two peace treaties signed in October 1648 in the Westphalian cities of Osnabrück and Münster. They ended the Thirty Years' War (1618–1648) and brought peace to the Holy Roman Empire ...
. In 1618, the electors of Brandenburg also inherited the
Duchy of Prussia The Duchy of Prussia (, , ) or Ducal Prussia (; ) was a duchy in the region of Prussia established as a result of secularization of the Monastic Prussia, the territory that remained under the control of the State of the Teutonic Order until t ...
, since 1511 ruled by a younger branch of the House of Hohenzollern. In 1525, Albrecht of Brandenburg, the last grand master of the
Teutonic Order The Teutonic Order is a religious order (Catholic), Catholic religious institution founded as a military order (religious society), military society in Acre, Israel, Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Sa ...
, secularized his territory and converted it into a duchy. It was ruled in a
personal union A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...
with Brandenburg, known as " Brandenburg-Prussia". A full union was not possible, since Brandenburg was still legally part of the Holy Roman Empire and the Duchy of Prussia was a
fief A fief (; ) was a central element in medieval contracts based on feudal law. It consisted of a form of property holding or other rights granted by an overlord to a vassal, who held it in fealty or "in fee" in return for a form of feudal alle ...
of
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
. The Teutonic Order had paid homage to Poland since 1466, and the Hohenzollerns continued to pay homage after secularizing Ducal Prussia. In the course of the
Second Northern War The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes, and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of ...
, the treaties of Labiau and Wehlau-Bromberg granted the Hohenzollerns full sovereignty over the Prussian duchy by September 1657. In return for an alliance against France in the
War of the Spanish Succession The War of the Spanish Succession was a European great power conflict fought between 1701 and 1714. The immediate cause was the death of the childless Charles II of Spain in November 1700, which led to a struggle for control of the Spanish E ...
, the Great Elector's son, Frederick III, was allowed to elevate Prussia to a kingdom in the Crown Treaty of 16 November 1700. Frederick crowned himself "
King in Prussia King ''in'' Prussia (German language, German: ''König in Preußen'') was a title used by the Prussian kings (also in personal union Elector of Brandenburg, Electors of Brandenburg) from 1701 to 1772. Subsequently, they used the title King ''of' ...
" as
Frederick I Frederick I or Friedrich I may refer to: * Frederick of Utrecht or Frederick I (815/16–834/38), Bishop of Utrecht. * Frederick I, Duke of Upper Lorraine (942–978) * Frederick I, Duke of Swabia (1050–1105) * Frederick I ...
on 18 January 1701. Legally, no kingdoms could exist in the Holy Roman Empire except for
Bohemia Bohemia ( ; ; ) is the westernmost and largest historical region of the Czech Republic. In a narrow, geographic sense, it roughly encompasses the territories of present-day Czechia that fall within the Elbe River's drainage basin, but historic ...
and
Italy Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
. However, Frederick took the line that since Prussia had never been part of the empire and the Hohenzollerns were fully sovereign over it, he could elevate Prussia to a kingdom. Emperor Leopold I, keen to secure Frederick's support in the impending
War of the Spanish Succession The War of the Spanish Succession was a European great power conflict fought between 1701 and 1714. The immediate cause was the death of the childless Charles II of Spain in November 1700, which led to a struggle for control of the Spanish E ...
, acquiesced. The style "King ''in'' Prussia" was adopted to acknowledge the
legal fiction A legal fiction is a construct used in the law where a thing is taken to be true, which is not in fact true, in order to achieve an outcome. Legal fictions can be employed by the courts or found in legislation. Legal fictions are different from ...
that the Hohenzollerns were legally kings only in their former duchy. In Brandenburg and the portions of their domains that were within the Empire, they were still legally only electors under the overlordship of the emperor. However, by this time the emperor's authority was only nominal. The rulers of the empire's various territories acted largely as the rulers of
sovereign state A sovereign state is a State (polity), state that has the highest authority over a territory. It is commonly understood that Sovereignty#Sovereignty and independence, a sovereign state is independent. When referring to a specific polity, the ter ...
s, and only acknowledged the emperor's suzerainty in a formal way. In addition, the duchy was only the eastern bulk of the region of Prussia; the westernmost fragment constituted the part of
Royal Prussia Royal Prussia (; or , ) or Polish PrussiaAnton Friedrich Büsching, Patrick Murdoch. ''A New System of Geography'', London 1762p. 588/ref> (Polish: ; German: ) became a province of the Crown of the Kingdom of Poland, which was annexed follow ...
east of Vistula, held along with the title ''King of Prussia'' by the
King of Poland Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of Royal elections in Poland, free election of monarchs made it a uniquely electab ...
. While the personal union between Brandenburg and Prussia legally continued until the end of the empire in 1806, from 1701 onward, Brandenburg was ''de facto'' treated as an integral part of the kingdom. Since the Hohenzollerns were nominally still subjects of the emperor within the parts of their domains that were part of the empire, they continued to use the additional title of Elector of Brandenburg until the empire was dissolved. It was not until 1772 that the title "King ''of'' Prussia" was adopted, following the acquisition of Royal Prussia in the
First Partition of Poland The First Partition of Poland took place in 1772 as the first of three partitions that eventually ended the existence of the Polish–Lithuanian Commonwealth by 1795. The growth of power in the Russian Empire threatened the Kingdom of Prussia an ...
.


1701–1721: Plague and the Great Northern War

The Kingdom of Prussia was still recovering from the devastation of the
Thirty Years' War The Thirty Years' War, fought primarily in Central Europe between 1618 and 1648, was one of the most destructive conflicts in History of Europe, European history. An estimated 4.5 to 8 million soldiers and civilians died from battle, famine ...
and poor in natural resources. Its territory was disjointed, stretching from the lands of the Duchy of Prussia on the south-east coast of the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...
to the Hohenzollern heartland of
Brandenburg Brandenburg, officially the State of Brandenburg, is a States of Germany, state in northeastern Germany. Brandenburg borders Poland and the states of Berlin, Mecklenburg-Vorpommern, Lower Saxony, Saxony-Anhalt, and Saxony. It is the List of Ger ...
, with the exclaves of
Cleves Kleve (; traditional ; ; ; ; ; Low Rhenish: ''Kleff'') is a town in the Lower Rhine region of northwestern Germany near the Dutch border and the River Rhine. From the 11th century onwards, Cleves was capital of a county and later a duchy ...
,
Mark Mark may refer to: In the Bible * Mark the Evangelist (5–68), traditionally ascribed author of the Gospel of Mark * Gospel of Mark, one of the four canonical gospels and one of the three synoptic gospels Currencies * Mark (currency), a currenc ...
and Ravensberg in the
Rhineland The Rhineland ( ; ; ; ) is a loosely defined area of Western Germany along the Rhine, chiefly Middle Rhine, its middle section. It is the main industrial heartland of Germany because of its many factories, and it has historic ties to the Holy ...
. In 1708 about one third of the population of
East Prussia East Prussia was a Provinces of Prussia, province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's ...
died during the
Great Northern War plague outbreak During the Great Northern War (1700–1721), many towns and areas around the Baltic Sea and East-Central Europe had a severe outbreak of the plague with a peak from 1708 to 1712. This epidemic was probably part of a pandemic affecting an area fr ...
. The
bubonic plague Bubonic plague is one of three types of Plague (disease), plague caused by the Bacteria, bacterium ''Yersinia pestis''. One to seven days after exposure to the bacteria, flu-like symptoms develop. These symptoms include fever, headaches, and ...
reached
Prenzlau Prenzlau (; ) is a town in Brandenburg, in north-eastern Germany, the administrative seat of Uckermark District. It is also the centre of the historic Uckermark region. Geography The town is located on the Ucker river, about north of Berlin. ...
in August 1710 but receded before it could reach the capital
Berlin Berlin ( ; ) is the Capital of Germany, capital and largest city of Germany, by both area and List of cities in Germany by population, population. With 3.7 million inhabitants, it has the List of cities in the European Union by population withi ...
, which was only away. The
Great Northern War In the Great Northern War (1700–1721) a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in Northern Europe, Northern, Central Europe, Central and Eastern Europe. The initial leaders of the ant ...
was the first major conflict in which the Kingdom of Prussia was involved. Starting in 1700, the war involved a coalition led by Tsarist Russia against the dominant North European power at the time, the
Swedish Empire The Swedish Empire or the Great Power era () was the period in Swedish history spanning much of the 17th and early 18th centuries during which Sweden became a European great power that exercised territorial control over much of the Baltic regi ...
. Crown Prince
Frederick William The name Frederick William usually refers to several monarchs and princes of the Hohenzollern dynasty: * Frederick William, Elector of Brandenburg (1620–1688) * Frederick William, Duke of Mecklenburg-Schwerin (1675–1713) * Frederick William I of ...
tried in 1705 to get Prussia involved in the war, stating "best Prussia has her own army and makes her own decisions."Feuchtwanger, E. J. Prussia: Myth and Reality: The Role of Prussia in German History. Chicago: Henry Regnery Company, 1970. His views, however, were not considered acceptable by his father, and was not until 1713 that Frederick William ascended to the throne. Therefore, in 1715, Prussia, led by Frederick William, joined the coalition for various reasons, including the danger of being attacked from both her rear and the sea; her claims on
Pomerania Pomerania ( ; ; ; ) is a historical region on the southern shore of the Baltic Sea in Central Europe, split between Poland and Germany. The central and eastern part belongs to the West Pomeranian Voivodeship, West Pomeranian, Pomeranian Voivod ...
; and the fact that if she stood aside and Sweden lost, she would not get a share of the territory. Prussia only participated in one battle, the Battle of Stresow on the island of
Rügen Rügen (; Rani: ''Rȯjana'', ''Rāna''; , ) is Germany's largest island. It is located off the Pomeranian coast in the Baltic Sea and belongs to the state of Mecklenburg-Western Pomerania. The "gateway" to Rügen island is the Hanseatic ci ...
, as the war had already been practically decided in the 1709
Battle of Poltava The Battle of Poltava took place 8 July 1709, was the decisive and largest battle of the Great Northern War. The Russian army under the command of Tsar Peter I defeated the Swedish army commanded by Carl Gustaf Rehnskiöld. The battle would l ...
. In the Treaty of Stockholm Prussia gained all of
Swedish Pomerania Swedish Pomerania (; ) was a dominions of Sweden, dominion under the Sweden, Swedish Crown from 1630 to 1815 on what is now the Baltic Sea, Baltic coast of Germany and Poland. Following the Polish-Swedish War, Polish War and the Thirty Years' War ...
east of the River
Oder The Oder ( ; Czech and ) is a river in Central Europe. It is Poland's second-longest river and third-longest within its borders after the Vistula and its largest tributary the Warta. The Oder rises in the Czech Republic and flows through wes ...
. Sweden would however keep a portion of Pomerania until 1815. The Great Northern War not only marked the end of the Swedish Empire but also elevated Prussia and Russia at the expense of the declining Polish-Lithuanian Commonwealth as new powers in Europe. The Great Elector had incorporated the
Junker Junker (, , , , , , ka, იუნკერი, ) is a noble honorific, derived from Middle High German , meaning 'young nobleman'Duden; Meaning of Junker, in German/ref> or otherwise 'young lord' (derivation of and ). The term is traditionally ...
s, the landed aristocracy, into the kingdom's bureaucracy and military machine, giving them a vested interest in the Prussian Army and
compulsory education Compulsory education refers to a period of education that is required of all people and is imposed by the government. This education may take place at a registered school or at home or other places. Compulsory school attendance or compulsory sc ...
. King Frederick William I inaugurated the Prussian compulsory conscription system in 1717.


1740–1762: Silesian Wars

In 1740, King Frederick II (Frederick the Great) came to the throne. Using the pretext of a 1537 treaty (vetoed by Emperor Ferdinand I) by which parts of
Silesia Silesia (see names #Etymology, below) is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czech Silesia, Czech Republic and Germany. Its area is approximately , and the population is estimated at 8, ...
were to pass to
Brandenburg Brandenburg, officially the State of Brandenburg, is a States of Germany, state in northeastern Germany. Brandenburg borders Poland and the states of Berlin, Mecklenburg-Vorpommern, Lower Saxony, Saxony-Anhalt, and Saxony. It is the List of Ger ...
after the extinction of its ruling
Piast dynasty The House of Piast was the first historical ruling dynasty of Poland. The first documented List of Polish monarchs, Polish monarch was Duke Mieszko I of Poland, Mieszko I (–992). The Poland during the Piast dynasty, Piasts' royal rule in Pol ...
, Frederick invaded Silesia, thereby beginning the
War of the Austrian Succession The War of the Austrian Succession was a European conflict fought between 1740 and 1748, primarily in Central Europe, the Austrian Netherlands, Italian Peninsula, Italy, the Atlantic Ocean and Mediterranean Sea. Related conflicts include King Ge ...
. After rapidly occupying Silesia, Frederick offered to protect Queen
Maria Theresa Maria Theresa (Maria Theresia Walburga Amalia Christina; 13 May 1717 – 29 November 1780) was the ruler of the Habsburg monarchy from 1740 until her death in 1780, and the only woman to hold the position suo jure, in her own right. She was the ...
if the province were turned over to him. The offer was rejected, but Austria faced several other opponents in a desperate struggle for survival, and Frederick was eventually able to gain formal cession with the Treaty of Berlin in 1742. To the surprise of many, Austria managed to renew the war successfully. In 1744 Frederick invaded again to forestall reprisals and to claim, this time, the
Kingdom of Bohemia The Kingdom of Bohemia (), sometimes referenced in English literature as the Czech Kingdom, was a History of the Czech lands in the High Middle Ages, medieval and History of the Czech lands, early modern monarchy in Central Europe. It was the pr ...
. He failed, but French pressure on Austria's ally
Great Britain Great Britain is an island in the North Atlantic Ocean off the north-west coast of continental Europe, consisting of the countries England, Scotland, and Wales. With an area of , it is the largest of the British Isles, the List of European ...
led to a series of treaties and compromises, culminating in the 1748 Treaty of Aix-la-Chapelle that restored peace and left Prussia in possession of most of Silesia. Humiliated by the cession of Silesia, Austria worked to secure an alliance with France and Russia (the "
Diplomatic Revolution The Diplomatic Revolution of 1756 was the reversal of longstanding alliances in Europe between the War of the Austrian Succession and the Seven Years' War. Austria went from an ally of Britain to an ally of France; the Dutch Republic, a long-stan ...
"), while Prussia drifted into Great Britain's camp forming the Anglo-Prussian Alliance. When Frederick preemptively invaded Saxony and Bohemia over the course of a few months in 1756–1757, he began a
Third Silesian War The Third Silesian War () was a war between Prussia and Austria (together with its allies) that lasted from 1756 to 1763 and confirmed Prussia's control of the region of Silesia (now in south-western Poland). The war was fought mainly in Silesi ...
and initiated the
Seven Years' War The Seven Years' War, 1756 to 1763, was a Great Power conflict fought primarily in Europe, with significant subsidiary campaigns in North America and South Asia. The protagonists were Kingdom of Great Britain, Great Britain and Kingdom of Prus ...
. This war was a desperate struggle for the Prussian Army, and the fact that it managed to fight much of Europe to a draw bears witness to Frederick's military skills. Facing Austria,
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
, France, and Sweden simultaneously, and with only
Hanover Hanover ( ; ; ) is the capital and largest city of the States of Germany, German state of Lower Saxony. Its population of 535,932 (2021) makes it the List of cities in Germany by population, 13th-largest city in Germany as well as the fourth-l ...
(and the non-continental British) as notable allies, Frederick managed to prevent a serious invasion until October 1760, when the Russian army briefly occupied Berlin and
Königsberg Königsberg (; ; ; ; ; ; , ) is the historic Germany, German and Prussian name of the city now called Kaliningrad, Russia. The city was founded in 1255 on the site of the small Old Prussians, Old Prussian settlement ''Twangste'' by the Teuton ...
. The situation became progressively grimmer, however, until the death in 1762 of Empress
Elizabeth of Russia Elizabeth or Elizaveta Petrovna (; ) was Empress of Russia from 1741 until her death in 1762. She remains one of the most popular List of Russian rulers, Russian monarchs because of her decision not to execute a single person during her reign, ...
(
Miracle of the House of Brandenburg The Miracle of the House of Brandenburg is the name given by Frederick II of Prussia to the failure of Russia and Austria to follow up their victory over him at the Battle of Kunersdorf on 12 August 1759 during the Seven Years' War. The name i ...
). The accession of the Prussophile Peter III relieved the pressure on the eastern front. Sweden also exited the war at about the same time. Defeating the Austrian army at the Battle of Burkersdorf and relying on continuing British success against France in the war's colonial theatres, Prussia was finally able to force a ''
status quo ante bellum The term is a Latin phrase meaning 'the situation as it existed before the war'. The term was originally used in treaties to refer to the withdrawal of enemy troops and the restoration of prewar leadership. When used as such, it means that no ...
'' on the continent. This result confirmed Prussia's major role within the German states and established the country as a European
great power A great power is a sovereign state that is recognized as having the ability and expertise to exert its influence on a global scale. Great powers characteristically possess military and economic strength, as well as diplomatic and soft power ...
. Frederick, appalled by the near-defeat of Prussia and the economic devastation of his kingdom, lived out his days as a much more peaceable ruler. Other additions to Prussia in the 18th century were the
County of East Frisia The County of East Frisia (; Frisian: ''Greefskip Eastfryslân''; Dutch: ''Graafschap Oost-Friesland'') was a county (though ruled by a prince after 1662) in the region of East Frisia in the northwest of the present-day German state of Lower S ...
(1744), the
Principality of Bayreuth The Principality of Bayreuth () or Margraviate of Brandenburg-Bayreuth (''Markgraftum Brandenburg-Bayreuth'') was an immediate territory of the Holy Roman Empire, ruled by a Franconian branch of the Hohenzollern dynasty. Since Burgrave Frederi ...
(1791) and
Principality of Ansbach The Principality or Margraviate of (Brandenburg) Ansbach ( or ) was a principality in the Holy Roman Empire centered on the Franconian city of Ansbach. The ruling Hohenzollern princes of the land were known as margraves, as their ancestors were ...
(1791), the latter two being acquired through purchase from branches of the Hohenzollern dynasty.


1772, 1793, and 1795: Partitions of Polish–Lithuanian Commonwealth

To the east and south of Prussia, the
Polish–Lithuanian Commonwealth The Polish–Lithuanian Commonwealth, also referred to as Poland–Lithuania or the First Polish Republic (), was a federation, federative real union between the Crown of the Kingdom of Poland, Kingdom of Poland and the Grand Duchy of Lithuania ...
had gradually weakened during the 18th century. Alarmed by increasing Russian influences in Polish affairs and by a possible expansion of the
Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...
, Frederick was instrumental in initiating the first of the
Partitions of Poland The Partitions of Poland were three partition (politics), partitions of the Polish–Lithuanian Commonwealth that took place between 1772 and 1795, toward the end of the 18th century. They ended the existence of the state, resulting in the eli ...
between Russia, Prussia, and Austria in 1772 to maintain a balance of power. The Kingdom of Prussia annexed most of the Polish province of
Royal Prussia Royal Prussia (; or , ) or Polish PrussiaAnton Friedrich Büsching, Patrick Murdoch. ''A New System of Geography'', London 1762p. 588/ref> (Polish: ; German: ) became a province of the Crown of the Kingdom of Poland, which was annexed follow ...
, including
Warmia Warmia ( ; Latin: ''Varmia'', ''Warmia''; ; Warmian subdialect, Warmian: ''Warńija''; Old Prussian language, Old Prussian: ''Wārmi'') is both a historical and an ethnographic region in northern Poland, forming part of historical Prussia (reg ...
, allowing Frederick to finally adopt the title King ''of'' Prussia; the annexed Royal Prussian land was organised the following year into the
Province of West Prussia The Province of West Prussia (; ; ) was a province of Prussia from 1773 to 1829 and from 1878 to 1919. West Prussia was established as a province of the Kingdom of Prussia in 1773, formed from Royal Prussia of the Polish–Lithuanian Commonweal ...
; most of the rest became the originally separate
Netze District The Netze District or District of the Netze ( or '; ) was a territory in the Kingdom of Prussia from 1772 until 1807. It included the urban centers of Bydgoszcz (''Bromberg''), Inowrocław (''Inowraclaw''), Piła (''Schneidemühl'') and Wałcz ( ...
, which was attached to West Prussia in 1775. The boundary between West Prussia and the territory previously known as the Duchy of Prussia, now the
Province of East Prussia East Prussia was a province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's Free State of Prussia, ...
was also adjusted, transferring
Marienwerder Kwidzyn (; ; Latin: ''Quedin''; Old Prussian: ''Kwēdina'') is a town in northern Poland on the Liwa River. With a population of 36,731, it is the capital of Kwidzyn County in the Pomeranian Voivodeship. Geography Kwidzyn is located on the L ...
to West Prussia (which became its capital) and Warmia (the Heilsberg and districts) to East Prussia. The annexed territory connected East Prussia with the Province of Pomerania, uniting the kingdom's eastern territories. After Frederick died in 1786, his nephew Fredrick William II continued the partitions, gaining a large part of western Poland in 1793; Thorn (Toruń) and Danzig (Gdańsk), which had remained part of Poland after the first partition, were incorporated into West Prussia, while the remainder became the province of
South Prussia South Prussia (; ) was a province of the Kingdom of Prussia from 1793 to 1807 created out of territory annexed in the Second Partition of Poland. History South Prussia was created out of territory annexed in the Second Partition of Poland and i ...
. In 1787, Prussia invaded Holland to restore the Orangist stadtholderate against the increasingly rebellious
Patriots A patriot is a person with the quality of patriotism. Patriot(s) or The Patriot(s) may also refer to: Political and military groups United States * Patriot (American Revolution), those who supported the cause of independence in the American R ...
, who sought to overthrow the
House of Orange-Nassau The House of Orange-Nassau (, ), also known as the House of Orange because of the prestige of the princely title of Orange, also referred to as the Fourth House of Orange in comparison with the other noble houses that held the Principality of Or ...
and establish a
democratic republic A democratic republic is a form of government operating on principles adopted from a republic and a democracy. As a cross between two similar systems, democratic republics may function on principles shared by both republics and democracies. Whil ...
. The direct cause of the invasion was the arrest at
Goejanverwellesluis The Goejanverwellesluis is a lock in Hekendorp, Netherlands. The 'Goejannen' - the men from the surrounding polders who went to sea - said their last farewells by this channel. According to the tradition, Wilhelmina of Prussia, wife of stadhol ...
, where Frederick William II's sister Wilhelmina of Prussia, also stadtholder
William V of Orange William V (Willem Batavus; 8 March 1748 – 9 April 1806) was Prince of Orange and the last Stadtholder of the Dutch Republic. He went into exile to London in 1795. He was furthermore ruler of the Principality of Orange-Nassau until his death in ...
's wife, was stopped by a band of Patriots who denied her passage to
The Hague The Hague ( ) is the capital city of the South Holland province of the Netherlands. With a population of over half a million, it is the third-largest city in the Netherlands. Situated on the west coast facing the North Sea, The Hague is the c ...
to reclaim her husband's position. In 1795, the Polish-Lithuanian Commonwealth ceased to exist and a large area (including
Warsaw Warsaw, officially the Capital City of Warsaw, is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-central Poland. Its population is officially estimated at ...
) to the south and east of East Prussia became part of Prussia. Most of the new territories (and the part of South Prussia north of the
Vistula The Vistula (; ) is the longest river in Poland and the ninth-longest in Europe, at in length. Its drainage basin, extending into three other countries apart from Poland, covers , of which is in Poland. The Vistula rises at Barania Góra i ...
) were organised into the province of New East Prussia; South Prussia gained the area immediately south of the Vistula,
Narew The Narew (; ; or ) is a 499-kilometre (310 mi) river primarily in north-eastern Poland. It is a tributary of the river Vistula. The Narew is one of Europe's few braided rivers, the term relating to the twisted channels resembling braided h ...
and Bug, including Warsaw; a small area to the south of South Prussia became
New Silesia New Silesia ( or ''Neu-Schlesien'') was a small province of the Kingdom of Prussia from 1795 to 1807, created after the Third Partition of Poland. It was located northwest of Kraków and southeast of Częstochowa, in the lands that had been part ...
. With the Polish-Lithuanian state gone Prussia now shared its eastern borders with the Habsburg monarchy (
West Galicia New Galicia or West Galicia ( or ''Galicja Zachodnia''; or ''Westgalizien'') was an administrative region of the Habsburg monarchy, constituted from the territory annexed in the course of the Third Partition of Poland in 1795. The Austrian E ...
) and Russia (
Russian partition The Russian Partition (), sometimes called Russian Poland, constituted the former territories of the Polish–Lithuanian Commonwealth that were annexed by the Russian Empire in the course of late-18th-century Partitions of Poland. The Russian ac ...
). The Partitions were facilitated by the fact that they occurred just before the 19th-century rise of nationalism in Europe, and the national self-awareness was yet to be developed in most European peoples, especially among commoners. The Kingdom of Prussia was perceived in Poland more as a nationality-neutral personal holding of the ruling
House of Hohenzollern The House of Hohenzollern (, ; , ; ) is a formerly royal (and from 1871 to 1918, imperial) German dynasty whose members were variously princes, Prince-elector, electors, kings and emperors of Hohenzollern Castle, Hohenzollern, Margraviate of Bran ...
, rather than a German nation-state, and any anxiety concerned predominantly freedom to practice religion rather than rights to maintain national identity. The onset of Germanisation in the following decades, later joined by the , quickly changed this benign picture and alienated Poles from the Prussian state, ultimately boosting their national self-awareness and eliciting their national resistance against Prussian rule.


1801–1815: Napoleonic Wars

Following the French Revolution and the
Execution of Louis XVI Louis XVI, former Bourbon King of France since the Proclamation of the abolition of the monarchy, abolition of the monarchy, was publicly executed on 21 January 1793 during the French Revolution at the ''Place de la Révolution'' in Paris. At Tr ...
, Prussia declared war on the
French First Republic In the history of France, the First Republic (), sometimes referred to in historiography as Revolutionary France, and officially the French Republic (), was founded on 21 September 1792 during the French Revolution. The First Republic lasted un ...
. When Prussian troops attempted to invade France, they were beaten back and the Treaty of Basel (1795) ended the
War of the First Coalition The War of the First Coalition () was a set of wars that several European powers fought between 1792 and 1797, initially against the Constitutional Cabinet of Louis XVI, constitutional Kingdom of France and then the French First Republic, Frenc ...
. In it, the First French Republic and Prussia had stipulated that the latter would ensure the Holy Roman Empire's neutrality in all the latter's territories north of the demarcation line of the River
Main Main may refer to: Geography *Main River (disambiguation), multiple rivers with the same name *Ma'in, an ancient kingdom in modern-day Yemen * Main, Iran, a village in Fars Province *Spanish Main, the Caribbean coasts of mainland Spanish territ ...
, including the British continental dominions of the Electorate of Hanover and the Duchies of Bremen-Verden. To this end, Hanover (including Bremen-Verden) also had to provide troops for the so-called ''demarcation army'' maintaining this state of ''armed neutrality''. In the course of the
War of the Second Coalition The War of the Second Coalition () (1798/9 – 1801/2, depending on periodisation) was the second war targeting French Revolution, revolutionary French First Republic, France by many European monarchies, led by Kingdom of Great Britain, Britai ...
against France (1799–1802),
Napoleon Napoleon Bonaparte (born Napoleone di Buonaparte; 15 August 1769 – 5 May 1821), later known by his regnal name Napoleon I, was a French general and statesman who rose to prominence during the French Revolution and led Military career ...
Bonaparte urged Prussia to occupy Hanover. In 1801, 24,000 Prussian soldiers invaded, surprising Hanover, which surrendered without a fight. In April 1801 the Prussian troops arrived in Bremen-Verden's capital
Stade Stade (; ), officially the Hanseatic City of Stade (, ) is a city in Lower Saxony in northern Germany. First mentioned in records in 934, it is the seat of the Stade (district), district () which bears its name. It is located roughly to the wes ...
and stayed there until October that year. The
United Kingdom of Great Britain and Ireland The United Kingdom of Great Britain and Ireland was the union of the Kingdom of Great Britain and the Kingdom of Ireland into one sovereign state, established by the Acts of Union 1800, Acts of Union in 1801. It continued in this form until ...
first ignored Prussia's hostility, but when it joined the pro-French Second League of Armed Neutrality alongside
Denmark–Norway Denmark–Norway (Danish language, Danish and Norwegian language, Norwegian: ) is a term for the 16th-to-19th-century multi-national and multi-lingual real unionFeldbæk 1998:11 consisting of the Kingdom of Denmark, the Kingdom of Norway (includ ...
and Russia, Britain started to capture Prussian sea vessels. After the Battle of Copenhagen the coalition fell apart and Prussia again withdrew its troops. At Napoleon's instigation, Prussia recaptured British Hanover and Bremen-Verden in early 1806. On 6 August that year the Holy Roman Empire was dissolved as a result of Napoleon's victories over
Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
. The title of (
Prince-elector The prince-electors ( pl. , , ) were the members of the Electoral College of the Holy Roman Empire, which elected the Holy Roman Emperor. Usually, half of the electors were archbishops. From the 13th century onwards, a small group of prince- ...
) of
Brandenburg Brandenburg, officially the State of Brandenburg, is a States of Germany, state in northeastern Germany. Brandenburg borders Poland and the states of Berlin, Mecklenburg-Vorpommern, Lower Saxony, Saxony-Anhalt, and Saxony. It is the List of Ger ...
became meaningless, and was dropped. Nonetheless, King
Frederick William III Frederick William III (; 3 August 1770 – 7 June 1840) was King of Prussia from 16 November 1797 until his death in 1840. He was concurrently Elector of Brandenburg in the Holy Roman Empire until 6 August 1806, when the empire was dissolved. ...
was now ''de jure'' as well as ''de facto'' sovereign of all of the Hohenzollern domains. Before this time, the Hohenzollern sovereign had held many titles and crowns, from Supreme Governor of the
Protestant Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...
Churches (''summus episcopus'') to King, Elector, Grand Duke, Duke for the various regions and realms under his rule. After 1806 he was simply King of Prussia and ''summus episcopus''. Prussia then turned against the
First French Empire The First French Empire or French Empire (; ), also known as Napoleonic France, was the empire ruled by Napoleon Bonaparte, who established French hegemony over much of continental Europe at the beginning of the 19th century. It lasted from ...
, but was defeated in the
Battle of Jena–Auerstedt The twin battles of Jena and Auerstedt (; older spelling: ''Auerstädt'') were fought on 14 October 1806 on the plateau west of the river Saale in today's Germany, between the forces of Napoleon I of France and Frederick William III of Pruss ...
(14 October 1806) and Frederick William III was then forced to temporarily flee to remote Memel. After the
Treaties of Tilsit The Treaties of Tilsit (), also collectively known as the Peace of Tilsit (; ), were two peace treaties signed by French Emperor Napoleon in the town of Tilsit in July 1807 in the aftermath of his victory at Friedland, at the end of the War o ...
in 1807, Prussia lost about half of its territory, including the land gained from the Second and Third Partitions of Poland (which now fell to the
Duchy of Warsaw The Duchy of Warsaw (; ; ), also known as the Grand Duchy of Warsaw and Napoleonic Poland, was a First French Empire, French client state established by Napoleon Bonaparte in 1807, during the Napoleonic Wars. It initially comprised the ethnical ...
) and all land west of the
Elbe The Elbe ( ; ; or ''Elv''; Upper Sorbian, Upper and , ) is one of the major rivers of Central Europe. It rises in the Giant Mountains of the northern Czech Republic before traversing much of Bohemia (western half of the Czech Republic), then Ge ...
river. France recaptured Prussian-occupied Hanover, including Bremen-Verden. The remainder of the kingdom was occupied by French troops (at Prussia's expense) and the king was obliged to make an alliance with France and join the
Continental System The Continental System or Continental Blockade () was a large-scale embargo by French emperor Napoleon I against the British Empire from 21 November 1806 until 11 April 1814, during the Napoleonic Wars. Napoleon issued the Berlin Decree on 21 No ...
. The
Prussian reforms The Prussian Reform Movement was a series of constitutional, administrative, social, and economic reforms early in 19th-century Prussia. They are sometimes known as the Stein–Hardenberg Reforms, for Karl Freiherr vom Stein and Karl August v ...
were a reaction to the Prussian defeat in 1806 and the Treaties of Tilsit. It describes a series of constitutional, administrative, social and economic reforms of the kingdom of Prussia. They are sometimes known as the '' Stein-Hardenberg Reforms'' after Karl Freiherr vom Stein and Karl August Fürst von Hardenberg, their main instigators. After the defeat of Napoleon in Russia in 1812, Prussia quit the alliance and took part in the
Sixth Coalition Sixth is the ordinal form of the number six. * The Sixth Amendment, to the U.S. Constitution * A keg of beer, equal to 5 U.S. gallons or barrel * The fraction A fraction (from , "broken") represents a part of a whole or, more generally, ...
during the "Wars of Liberation" () against the French occupation. Prussian troops under Marshal
Gebhard Leberecht von Blücher Gebhard Leberecht von Blücher (; 21 December 1742 – 12 September 1819), ''Graf'' (count), later elevated to ''Fürst'' (prince) von Wahlstatt, was a Kingdom of Prussia, Prussian ''Generalfeldmarschall'' (field marshal). He earned his greatest ...
contributed crucially in the
Battle of Waterloo The Battle of Waterloo was fought on Sunday 18 June 1815, near Waterloo, Belgium, Waterloo (then in the United Kingdom of the Netherlands, now in Belgium), marking the end of the Napoleonic Wars. The French Imperial Army (1804–1815), Frenc ...
of 1815 to the final victory over Napoleon.


1815: After Napoleon

Prussia's reward for its part in France's defeat came at the
Congress of Vienna The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings to discuss and agree upon a possible new layout of the European political and constitutional order after the downfall of the French Emperor Napoleon, Napol ...
. It regained most of its pre-1806 territory. Notable exceptions included part of the territory annexed in the Second and Third Partitions of Poland, which became
Congress Poland Congress Poland or Congress Kingdom of Poland, formally known as the Kingdom of Poland, was a polity created in 1815 by the Congress of Vienna as a semi-autonomous Polish state, a successor to Napoleon's Duchy of Warsaw. It was established w ...
under Russian rule (though it did retain Danzig, acquired in the Second Partition). It also did not regain several of its former towns in the south. However, as compensation it picked up some new territory, including 40% of the
Kingdom of Saxony The Kingdom of Saxony () was a German monarchy in Central Europe between 1806 and 1918, the successor of the Electorate of Saxony. It joined the Confederation of the Rhine after the dissolution of the Holy Roman Empire, later joining the German ...
and much of
Westphalia Westphalia (; ; ) is a region of northwestern Germany and one of the three historic parts of the state of North Rhine-Westphalia. It has an area of and 7.9 million inhabitants. The territory of the region is almost identical with the h ...
and the Rhineland. Prussia now stretched uninterrupted from the Niemen in the east to the Elbe in the west, and possessed a chain of disconnected territories west of the Elbe. This left Prussia as the only great power with a predominantly German-speaking population. With these gains in territory, the kingdom was reorganized into 10 provinces. Most of the kingdom, aside from the provinces of
East Prussia East Prussia was a Provinces of Prussia, province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's ...
,
West Prussia The Province of West Prussia (; ; ) was a province of Prussia from 1773 to 1829 and from 1878 to 1919. West Prussia was established as a province of the Kingdom of Prussia in 1773, formed from Royal Prussia of the Polish–Lithuanian Commonweal ...
, and the autonomous
Grand Duchy of Posen The Grand Duchy of Posen (; ) was part of the Kingdom of Prussia, created from Prussian Partition, territories annexed by Prussia after the Partitions of Poland, and formally established following the Congress of Vienna in 1815. On 9 February 1 ...
but including the formerly Polish
Lauenburg and Bütow Land Lauenburg and Bütow Land ( or , , ) formed a historical region in the western part of Pomerelia (Polish and papal historiography) or in the eastern part of Farther Pomerania (German historiography). It was composed of two districts centered on th ...
and the Draheim territory, became part of the new
German Confederation The German Confederation ( ) was an association of 39 predominantly German-speaking sovereign states in Central Europe. It was created by the Congress of Vienna in 1815 as a replacement of the former Holy Roman Empire, which had been dissolved ...
, a confederacy of 39 sovereign states (including Austria and Bohemia) replacing the defunct Holy Roman Empire. Frederick William III submitted Prussia to a number of administrative reforms, among others reorganising the government by way of ministries, which remained formative for the following hundred years. As to religion, reformed
Calvinist Reformed Christianity, also called Calvinism, is a major branch of Protestantism that began during the 16th-century Protestant Reformation. In the modern day, it is largely represented by the Continental Reformed Protestantism, Continenta ...
Frederick William III—as ''Supreme Governor of the
Protestant Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...
Churches''—asserted his long-cherished project (started in 1798) to unite the
Lutheran Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...
and the
Reformed Church Reformed Christianity, also called Calvinism, is a major branch of Protestantism that began during the 16th-century Protestant Reformation. In the modern day, it is largely represented by the Continental Reformed Christian, Presbyterian, ...
in 1817, (see Prussian Union). The Calvinist minority, strongly supported by its co-religionist Frederick William III, and the partially reluctant Lutheran majority formed the united Protestant
Evangelical Church in Prussia The Prussian Union of Churches (known under multiple other names) was a major Protestant church body which emerged in 1817 from a series of decrees by Frederick William III of Prussia that united both Lutheran and Reformed denominations in P ...
. However, ensuing quarrels causing a permanent
schism A schism ( , , or, less commonly, ) is a division between people, usually belonging to an organization, movement, or religious denomination. The word is most frequently applied to a split in what had previously been a single religious body, suc ...
among the Lutherans into united and
Old Lutherans Old Lutherans were German Lutherans in the Kingdom of Prussia, especially in the Province of Silesia, who refused to join the Prussian Union of churches in the 1830s and 1840s. Prussia's king, Frederick William III, was determined to unify th ...
by 1830. As a consequence of the
Revolutions of 1848 The revolutions of 1848, known in some countries as the springtime of the peoples or the springtime of nations, were a series of revolutions throughout Europe over the course of more than one year, from 1848 to 1849. It remains the most widespre ...
, the Principalities of
Hohenzollern-Sigmaringen Hohenzollern-Sigmaringen () was a principality in southwestern Germany. Its rulers belonged to the junior House of Hohenzollern#Swabian branch, Swabian branch of the House of Hohenzollern. The Swabian Hohenzollerns were elevated to princes in 162 ...
and
Hohenzollern-Hechingen Hohenzollern-Hechingen () was a small principality in southwestern Germany. Its rulers belonged to the House of Hohenzollern#Swabian branch, Swabian branch of the House of Hohenzollern, Hohenzollern dynasty. History The County of Hohenzollern- ...
(ruled by a
Catholic The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
cadet branch of the House of Hohenzollern) were annexed by Prussia in 1850, later united as the
Province of Hohenzollern The Province of Hohenzollern (, ''Hohenzollern Lands'') was a district of Prussia from 1850 to 1946. It was located in Swabia, the region of southern Germany that was the ancestral home of the House of Hohenzollern, to which the kings of Prussia ...
.


1848–1871: German wars of unification

During the half-century that followed the Congress of Vienna, a conflict of ideals took place within the German Confederation between the formation of a single German nation and the conservation of the current collection of smaller German states and kingdoms. The main debate centered around whether Prussia or the
Austrian Empire The Austrian Empire, officially known as the Empire of Austria, was a Multinational state, multinational European Great Powers, great power from 1804 to 1867, created by proclamation out of the Habsburg monarchy, realms of the Habsburgs. Duri ...
should be the leading member of any unified Germany. Those advocating for Prussian leadership contended that Austria had far too many non-German interests to work for the greater good of Germany. They argued that Prussia, as by far the most powerful state with a majority of German-speakers, was best suited to lead the new nation. The establishment of the German Customs Union () in 1834, which excluded Austria, increased Prussian influence over the member states. In the wake of the
Revolutions of 1848 The revolutions of 1848, known in some countries as the springtime of the peoples or the springtime of nations, were a series of revolutions throughout Europe over the course of more than one year, from 1848 to 1849. It remains the most widespre ...
, the
Frankfurt Parliament The Frankfurt National Assembly () was the first freely elected parliament for all German Confederation, German states, including the German-populated areas of the Austrian Empire, elected on 1 May 1848 (see German federal election, 1848). The ...
in 1849 offered King
Frederick William IV of Prussia Frederick William IV (; 15 October 1795 – 2 January 1861), the eldest son and successor of Frederick William III of Prussia, was King of Prussia from 7 June 1840 until his death on 2 January 1861. Also referred to as the "romanticist on the th ...
the crown of a united Germany. Frederick William refused the offer on the grounds that revolutionary assemblies could not grant royal titles. But he also refused for two other reasons: to do so would have done little to end the internal power-struggle between Austria and Prussia, and all Prussian kings (up to and including
William I William I may refer to: Kings * William the Conqueror (–1087), also known as William I, King of England * William I of Sicily (died 1166) * William I of Scotland (died 1214), known as William the Lion * William I of the Netherlands and Luxembour ...
) feared that the formation of a
German Empire The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
would mean the end of Prussia's independence within the German states. In 1848, actions taken by Denmark towards the Duchies of
Schleswig The Duchy of Schleswig (; ; ; ; ; ) was a duchy in Southern Jutland () covering the area between about 60 km (35 miles) north and 70 km (45 mi) south of the current border between Germany and Denmark. The territory has been di ...
and
Holstein Holstein (; ; ; ; ) is the region between the rivers Elbe and Eider (river), Eider. It is the southern half of Schleswig-Holstein, the northernmost States of Germany, state of Germany. Holstein once existed as the German County of Holstein (; 8 ...
led to the
First War of Schleswig The First Schleswig War (), also known as the Schleswig-Holstein uprising () and the Three Years' War (), was a military conflict in southern Denmark and northern Germany rooted in the Schleswig–Holstein question: who should control the Duc ...
(1848–51) between Denmark and the German Confederation, resulting in a Danish victory. Frederick William issued Prussia's first constitution by his own authority in 1848, modifying it in the Constitution of 1850. These documents—moderate by the standards of the time but conservative by today's—provided for a two-chamber parliament, the ''Landtag''. The lower house, later known as the , was elected by all males over the age of 25 using the
Prussian three-class franchise The Prussian three-class franchise (German: ) was an indirect electoral system used from 1848 until 1918 in the Kingdom of Prussia and for shorter periods in other German states. Voters were grouped by district into three classes, with the total ...
. Voters were divided into three classes whose votes were weighted according to the amount of taxes paid. In one typical election, the first class (with those who paid the most in taxes) included 4% of voters and the third class (with those who paid the least) had 82%, yet each group chose the same number of electors. The system all but assured dominance by the more well-to-do men of the population. The upper house, later renamed the ("House of Lords"), was appointed by the king. He retained full executive authority, and ministers were responsible only to him. As a result, the grip of the landowning classes, the
Junker Junker (, , , , , , ka, იუნკერი, ) is a noble honorific, derived from Middle High German , meaning 'young nobleman'Duden; Meaning of Junker, in German/ref> or otherwise 'young lord' (derivation of and ). The term is traditionally ...
s, remained unbroken, especially in the eastern provinces. The constitution nevertheless contained a number of liberal elements such as the introduction of jury courts and a catalog of fundamental rights that included freedom of religion, speech and the press. Frederick William suffered a stroke in 1857, and his younger brother, Prince William, became
regent In a monarchy, a regent () is a person appointed to govern a state because the actual monarch is a minor, absent, incapacitated or unable to discharge their powers and duties, or the throne is vacant and a new monarch has not yet been dete ...
. William pursued a considerably more moderate policy. Upon Frederick William IV's death in 1861 he succeeded to the Prussian throne as
William I William I may refer to: Kings * William the Conqueror (–1087), also known as William I, King of England * William I of Sicily (died 1166) * William I of Scotland (died 1214), known as William the Lion * William I of the Netherlands and Luxembour ...
. However, shortly after becoming king, he faced a dispute with his parliament over the size of the army. The parliament, dominated by the liberals, balked at William's desire to increase the number of regiments and withheld approval of the budget to pay for its cost. A deadlock ensued, and William seriously considered abdicating in favour of his son, Crown Prince
Frederick Frederick may refer to: People * Frederick (given name), the name Given name Nobility = Anhalt-Harzgerode = * Frederick, Prince of Anhalt-Harzgerode (1613–1670) = Austria = * Frederick I, Duke of Austria (Babenberg), Duke of Austria fro ...
. Ultimately, he decided to appoint as
prime minister A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
Otto von Bismarck Otto, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (; born ''Otto Eduard Leopold von Bismarck''; 1 April 1815 – 30 July 1898) was a German statesman and diplomat who oversaw the unification of Germany and served as ...
, at that time the Prussian ambassador to France. Bismarck took office on 23 September 1862. Although Bismarck had a reputation as an unyielding conservative, he initially inclined to seek a compromise over the budget issue. However, William refused to consider it; he viewed defence issues as the crown's personal province. Forced into a policy of confrontation, Bismarck came up with a novel theory. Under the constitution, the king and the parliament were responsible for agreeing on the budget. Bismarck argued that since they had failed to come to an agreement, there was a "hole" in the constitution, and the government had to continue to collect taxes and disburse funds in accordance with the old budget in order to keep functioning. The government thus operated without a new budget from 1862 to 1866, allowing Bismarck to implement William's military reforms. The liberals violently denounced Bismarck for what they saw as his disregard for the fundamental law of the kingdom. However, Bismarck's real plan was an accommodation with liberalism. Although he had opposed German unification earlier in his career, he had now come to believe it inevitable. To his mind, the conservative forces had to take the lead in the drive toward creating a unified nation in order to keep from being eclipsed. He also believed that the middle-class liberals wanted a unified Germany more than they wanted to break the grip of the traditional forces over society. He thus embarked on a drive to form a united Germany under Prussian leadership, and guided Prussia through three wars which ultimately achieved this goal. The first of these wars was the
Second War of Schleswig The Second Schleswig War (; or German Danish War), also sometimes known as the Dano-Prussian War or Prusso-Danish War, was the second military conflict over the Schleswig–Holstein question of the nineteenth century. The war began on 1 Februar ...
(1864), which Prussia initiated and succeeded in, and in which it gained the assistance of Austria. Denmark was soundly defeated and surrendered both Schleswig and Holstein, to Prussia and Austria respectively. The divided administration of Schleswig and Holstein then became the trigger for the
Austro-Prussian War The Austro-Prussian War (German: ''Preußisch-Österreichischer Krieg''), also known by many other names,Seven Weeks' War, German Civil War, Second War of Unification, Brothers War or Fraternal War, known in Germany as ("German War"), ''Deutsc ...
of 1866—also known as the Seven Weeks' War. Prussia, allied with the
Kingdom of Italy The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
and various northern German states, declared war on the Austrian Empire. The Austrian-led coalition was crushed, and Prussia annexed four of its smaller allies—the
Kingdom of Hanover The Kingdom of Hanover () was established in October 1814 by the Congress of Vienna, with the restoration of George III to his Hanoverian territories after the Napoleonic Wars, Napoleonic era. It succeeded the former Electorate of Hanover, and j ...
, the
Electorate of Hesse The Electorate of Hesse (), also known as Hesse-Kassel or Kurhessen, was the title used for the former Landgraviate of Hesse-Kassel after an 1803 reform where the Holy Roman Emperor elevated its ruler to the rank of Elector, thus giving him ...
, the
Duchy of Nassau The Duchy of Nassau (German language, German: ''Herzogtum Nassau'') was an independent state between 1806 and 1866, located in what became the Germany, German states of Rhineland-Palatinate and Hesse. It was a States of the Confederation of th ...
and the
Free City of Frankfurt Frankfurt was a major city of the Holy Roman Empire, being the seat of imperial elections since 885 and the city for Coronation of the Holy Roman emperor, imperial coronations from 1562 (previously in Free Imperial City of Aachen) until 1792. F ...
. Prussia also annexed Schleswig and Holstein, and also effectively annexed
Saxe-Lauenburg The Duchy of Saxe-Lauenburg (, ), was a ''reichsfrei'' duchy that existed from 1296 to 1803 and again from 1814 to 1876 in the extreme southeast region of what is now Schleswig-Holstein. Its territorial centre was in the modern district of Herz ...
by forcing it into a
personal union A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...
with Prussia (which was turned into a full union in 1876). King William initially wanted to take territory from Austria itself and annex Saxony, but Bismarck persuaded him to abandon the idea. While Bismarck wanted Austria to play no future role in German affairs, he foresaw that Austria could be a valuable future ally. With these gains in territory, the Prussian possessions in the Rhineland and Westphalia became geographically connected to the rest of the kingdom for the first time. Counting the ''de facto'' annexation of Saxe-Lauenburg, Prussia now stretched uninterrupted across the northern two-thirds of Germany. It would remain at this size until the overthrow of the monarchy in 1918. Bismarck used this opportunity to end the budget dispute with parliament. He proposed a bill of indemnity granting him retroactive approval for governing without a legal budget. He guessed, correctly as it turned out, that this would lead to a split between his liberal adversaries. While some of them argued that there could be no compromise with the principle of constitutional government, most of the liberals decided to support the bill in hopes of winning more freedom in the future. The German Confederation was dissolved as part of the war. In its place, Prussia cajoled the 21 states north of the
Main Main may refer to: Geography *Main River (disambiguation), multiple rivers with the same name *Ma'in, an ancient kingdom in modern-day Yemen * Main, Iran, a village in Fars Province *Spanish Main, the Caribbean coasts of mainland Spanish territ ...
into forming the
North German Confederation The North German Confederation () was initially a German military alliance established in August 1866 under the leadership of the Kingdom of Prussia, which was transformed in the subsequent year into a confederated state (a ''de facto'' feder ...
in 1866. Prussia entered the Confederation as a whole (including the East Prussian cradle of its statehood, as well as its share of dismembered Poland consisting of
Province of Posen The Province of Posen (; ) was a Provinces of Prussia, province of the Kingdom of Prussia from 1848 to 1920, occupying most of the historical Greater Poland. The province was established following the Greater Poland Uprising (1848), Poznań Uprisi ...
and
West Prussia The Province of West Prussia (; ; ) was a province of Prussia from 1773 to 1829 and from 1878 to 1919. West Prussia was established as a province of the Kingdom of Prussia in 1773, formed from Royal Prussia of the Polish–Lithuanian Commonweal ...
), thus becoming the dominant state in this new entity, with four-fifths of its territory and population—more than the other members of the confederation combined. Its near-total control was cemented in a
constitution A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organization or other type of entity, and commonly determines how that entity is to be governed. When these pri ...
written by Bismarck. Executive power was vested in a
president President most commonly refers to: *President (corporate title) * President (education), a leader of a college or university *President (government title) President may also refer to: Arts and entertainment Film and television *'' Præsident ...
—a hereditary office of the rulers of Prussia. He was assisted by a chancellor responsible only to the president. There was also a bicameral parliament. The lower house, or Reichstag (Diet), was elected by universal male suffrage. The upper house, or Bundesrat (Federal Council) was appointed by the state governments. The Bundesrat was, in practice, the stronger chamber. Prussia had 17 of 43 votes and could easily control proceedings through alliances with the other states. For all intents and purposes, Bismarck dominated the new grouping. He served as his own foreign minister for virtually his entire tenure as prime minister of Prussia, and in that capacity was able to instruct the Prussian delegates to the Bundesrat. The southern German states (except Austria) were forced to accept military alliances with Prussia, and Prussia began steps to merge them with the North German Confederation. Bismarck's planned unification of Germany had come considerably closer to realisation. The final act came with the
Franco-Prussian War The Franco-Prussian War or Franco-German War, often referred to in France as the War of 1870, was a conflict between the Second French Empire and the North German Confederation led by the Kingdom of Prussia. Lasting from 19 July 1870 to 28 Janua ...
(1870–1871), where Bismarck maneuvered Emperor
Napoleon III Napoleon III (Charles-Louis Napoléon Bonaparte; 20 April 18089 January 1873) was President of France from 1848 to 1852 and then Emperor of the French from 1852 until his deposition in 1870. He was the first president, second emperor, and last ...
of
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
into declaring war on Prussia. Activating the German alliances put in place after the Austro-Prussian War, the German states, aside from Austria, came together and swiftly defeated France, even managing to take Napoleon III prisoner (2 September 1870). Even before then, Bismarck was able to complete the work of unifying Germany under Prussian leadership. The patriotic fervour aroused by the war against France overwhelmed the remaining opponents of a unified nation, and on 18 January 1871 (the 170th anniversary of the coronation of the first Prussian king, Frederick I), the
German Empire The German Empire (),; ; World Book, Inc. ''The World Book dictionary, Volume 1''. World Book, Inc., 2003. p. 572. States that Deutsches Reich translates as "German Realm" and was a former official name of Germany. also referred to as Imperia ...
was proclaimed in the
Hall of Mirrors The Hall of Mirrors () is a grand Baroque architecture, Baroque style gallery and one of the most emblematic rooms in the royal Palace of Versailles near Paris, France. The grandiose ensemble of the hall and its adjoining salons was intended to ...
at
Versailles The Palace of Versailles ( ; ) is a former royal residence commissioned by King Louis XIV located in Versailles, Yvelines, Versailles, about west of Paris, in the Yvelines, Yvelines Department of Île-de-France, Île-de-France region in Franc ...
outside of
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
, while the French capital was still under
siege A siege () . is a military blockade of a city, or fortress, with the intent of conquering by attrition, or by well-prepared assault. Siege warfare (also called siegecrafts or poliorcetics) is a form of constant, low-intensity conflict charact ...
. King William became the first emperor () of a unified Germany. However, the titles of German Emperor and King of Prussia were to be borne by the same man until the end of the monarchy.


1871–1918: Peak and fall

Bismarck's new empire was the most powerful state on the Continent. Prussia's dominance over the new empire was almost as absolute as it was with the North German Confederation. It included two-thirds of the empire's territory and three-fifths of its population. The imperial crown was a hereditary office of the House of Hohenzollern. Prussia also had a large plurality of seats in the Bundesrat, with 17 votes out of 58 (17 out of 61 after 1911); no other state had more than six votes. As before, it could effectively control the proceedings with the support of its allies in the secondary states. As mentioned above, Bismarck served as foreign minister of Prussia for almost his entire career, and in that role instructed the Prussian deputies to the Bundesrat. The
Imperial German Army The Imperial German Army (1871–1919), officially referred to as the German Army (), was the unified ground and air force of the German Empire. It was established in 1871 with the political unification of Germany under the leadership of Kingdom o ...
was essentially an enlarged Prussian army, and the embassies of the new empire were mostly old Prussian embassies. The
Constitution of the German Empire The Constitution of the German Empire () was the basic law of the German Empire. It came into effect on 4 May 1871 and lasted formally until 14 August 1919. Some German historians refer to it as Bismarck's imperial constitution (German: , BRV). ...
was essentially an amended version of the constitution of the North German Confederation. However, the seeds for future problems lay in a gross disparity between the imperial and Prussian systems. The empire granted the vote to all men over 25, although Prussia retained its three-class franchise, in which votes were weighted by taxes paid. Since the imperial chancellor was, except for two periods (January–November 1873 and 1892–94) also prime minister of Prussia, this meant that for most of the empire's existence, the king/emperor and prime minister/chancellor had to seek majorities from legislatures elected by two completely different franchises. At the time of the empire's creation, both Prussia and Germany were roughly two-thirds rural. Within 20 years, the situation was reversed; the cities and towns accounted for two-thirds of the population. However, in both the kingdom and the empire, the constituencies were never redrawn to reflect the growing population and influence of the cities and towns. This meant that rural areas were grossly overrepresented from the 1890s onward. Bismarck realized that the rest of Europe was sceptical of his powerful new Reich, and turned his attention to preserving peace with such acts as the
Congress of Berlin At the Congress of Berlin (13 June – 13 July 1878), the major European powers revised the territorial and political terms imposed by the Russian Empire on the Ottoman Empire by the Treaty of San Stefano (March 1878), which had ended the Rus ...
. The new German Empire improved its already-strong relations with Britain. The ties between London and Berlin had already been sealed in 1858, when Crown Prince Frederick William of Prussia married
Victoria, Princess Royal Victoria, Princess Royal (Victoria Adelaide Mary Louisa; 21 November 1840 – 5 August 1901) was German Empress and Queen of Prussia as the wife of Frederick III, German Emperor. She was the eldest child of Queen Victoria of the United Kingdom ...
.
William I William I may refer to: Kings * William the Conqueror (–1087), also known as William I, King of England * William I of Sicily (died 1166) * William I of Scotland (died 1214), known as William the Lion * William I of the Netherlands and Luxembour ...
died in 1888, and the Crown Prince succeeded to the throne as Frederick III. The new emperor, a decided Anglophile, planned to transform Prussia and the empire into a more liberal and democratic monarchy based on the British model. However, Frederick was already ill with inoperable throat cancer, and died after only 99 days on the throne. He was succeeded by his 29-year-old son, William II. As a boy, William had rebelled against his parents' efforts to mould him as a liberal, and had become thoroughly Prussianized under Bismarck's tutelage. The new Kaiser William rapidly soured relations with the
British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies. * British national identity, the characteristics of British people and culture ...
and
Russian Russian(s) may refer to: *Russians (), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *A citizen of Russia *Russian language, the most widely spoken of the Slavic languages *''The Russians'', a b ...
royal families (despite being closely related to them), becoming their rival and ultimately their enemy. Before and during
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
(1914–1918), Prussia supplied significant numbers of soldiers and sailors in the German military, and Prussian Junkers dominated the higher ranks. In addition, portions of the Eastern Front were fought on Prussian soil. Prussia – along with Germany as a whole – experienced increasing troubles with revolutionaries during the war. The Great War ended by
armistice An armistice is a formal agreement of warring parties to stop fighting. It is not necessarily the end of a war, as it may constitute only a cessation of hostilities while an attempt is made to negotiate a lasting peace. It is derived from t ...
on 11 November 1918. Uprisings in Berlin and other centres began the civil conflict of the
German Revolution of 1918–19 German(s) may refer to: * Germany, the country of the Germans and German things **Germania (Roman era) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizenship in Germany, see also Ge ...
(). By late 1918, the Prussian House of Representatives was controlled by the
Social Democratic Party of Germany The Social Democratic Party of Germany ( , SPD ) is a social democratic political party in Germany. It is one of the major parties of contemporary Germany. Saskia Esken has been the party's leader since the 2019 leadership election together w ...
(SPD), which advocated
Marxism Marxism is a political philosophy and method of socioeconomic analysis. It uses a dialectical and materialist interpretation of historical development, better known as historical materialism, to analyse class relations, social conflict, ...
. William knew that he had lost his imperial crown for good, but still hoped to retain his Prussian crown; he believed that as ruler of two-thirds of Germany, he could remain a major figure in any successor regime. However, William discovered this was impossible under the imperial constitution. Although he believed he ruled the empire in
personal union A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...
with Prussia, the imperial constitution stipulated that the imperial crown was tied to the Prussian crown. In any event, he had lost support of the military who might have fought for him. William's abdication as both king of Prussia and German emperor was announced on 9 November 1918, and he went into exile in the
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
the next day. With armed revolts, mass strikes, and street fighting in Berlin, the Prussian state government declared a state of siege and appealed for imperial military aid. The ''Garde-Kavallerie-Schützen-Division'', commanded by Waldemar Pabst, moved against the strikers in Berlin. By the end of the fighting on 16 March, they had killed approximately 1,200 people, many of them unarmed and uninvolved. The revolutionary period lasted from November 1918 until the establishment in August 1919 of a republic that later became known as the
Weimar Republic The Weimar Republic, officially known as the German Reich, was the German Reich, German state from 1918 to 1933, during which it was a constitutional republic for the first time in history; hence it is also referred to, and unofficially proclai ...
. Prussia was incorporated as the
Free State of Prussia The Free State of Prussia (, ) was one of the States of the Weimar Republic, constituent states of Weimar Republic, Germany from 1918 to 1947. The successor to the Kingdom of Prussia after the defeat of the German Empire in World War I, it cont ...
in the Weimar Republic, gaining a new republican
constitution A constitution is the aggregate of fundamental principles or established precedents that constitute the legal basis of a polity, organization or other type of entity, and commonly determines how that entity is to be governed. When these pri ...
in 1920, becoming the
Free State of Prussia The Free State of Prussia (, ) was one of the States of the Weimar Republic, constituent states of Weimar Republic, Germany from 1918 to 1947. The successor to the Kingdom of Prussia after the defeat of the German Empire in World War I, it cont ...
. The state was abolished in 1947.


State


Government

The joint authority,
feudal Feudalism, also known as the feudal system, was a combination of legal, economic, military, cultural, and political customs that flourished in Middle Ages, medieval Europe from the 9th to 15th centuries. Broadly defined, it was a way of struc ...
and
bureaucratic Bureaucracy ( ) is a system of organization where laws or regulatory authority are implemented by civil servants or non-elected officials (most of the time). Historically, a bureaucracy was a government administration managed by departments ...
, on which Prussian absolute monarchy was based, saw its interests laid in suppression of the drive for personal freedom and democratic rights. It therefore had to recourse on police methods. The "police state", as Otto Hintze described it, replaced the older system with its feudal squirearchy run in the interests of the ruling class, but which in its rudimentary form was a constitutional state.


Politics

The Kingdom of Prussia was an absolute monarchy until the
Revolutions of 1848 in the German states In political science, a revolution (, 'a turn around') is a rapid, fundamental transformation of a society's class, state, ethnic or religious structures. According to sociologist Jack Goldstone, all revolutions contain "a common set of elemen ...
, after which Prussia became a
constitutional monarchy Constitutional monarchy, also known as limited monarchy, parliamentary monarchy or democratic monarchy, is a form of monarchy in which the monarch exercises their authority in accordance with a constitution and is not alone in making decisions. ...
and
Adolf Heinrich von Arnim-Boitzenburg Adolf Heinrich Graf von Arnim-Boitzenburg (10 April 1803 – 8 January 1868) was a German statesman. He served as the first Minister-President of Prussia for ten days during the Revolution of 1848. Early life Arnim was born in the Prussian ...
was appointed as Prussia's first Minister President. Following Prussia's first constitution, a two-house parliament was formed, called the
Landtag A ''Landtag'' (State Diet) is generally the legislative assembly or parliament of a federated state or other subnational self-governing entity in German-speaking nations. It is usually a unicameral assembly exercising legislative competence ...
. The lower house, or
Prussian House of Representatives The Prussian House of Representatives () was the lower chamber of the Landtag of Prussia (), the parliament of Kingdom of Prussia, Prussia from 1850 to 1918. Together with the upper house, the Prussian House of Lords, House of Lords (), it formed ...
was elected by all males over the age of 25 using the
Prussian three-class franchise The Prussian three-class franchise (German: ) was an indirect electoral system used from 1848 until 1918 in the Kingdom of Prussia and for shorter periods in other German states. Voters were grouped by district into three classes, with the total ...
introduced in the Constitution of 1850, which assured dominance by the more well-to-do elements of the population. The upper house, which was later renamed the
Prussian House of Lords The Prussian House of Lords () in Berlin was the upper house of the Landtag of Prussia (), the parliament of Prussia from 1850 to 1918. Together with the lower house, the House of Representatives (), it formed the Prussian bicameral legislature ...
, was appointed by the king. He retained full executive authority and ministers were responsible only to him. As a result, the grip of the landowning classes, the Prussian Junkers, remained unbroken, especially in the eastern provinces.
Prussian Secret Police The Prussian Secret Police () was the secret police of Prussia in the 19th and early 20th centuries. In 1851 the Police Union of German States was set up by the police forces of Austria, Prussia, Bavaria, Saxony, Hanover, Baden, and Württem ...
, formed in response to the
German revolutions of 1848–1849 The German revolutions of 1848–1849 (), the opening phase of which was also called the March Revolution (), were initially part of the Revolutions of 1848 that broke out in many European countries. They were a series of loosely coordinated p ...
, aided the conservative government.


Constitutions

There were two constitutions during the kingdom's existence, those of 1848 and 1850. The first was granted by the reluctant Frederick William IV in response to demands that arose during the German revolutions of 1848–1849. Elections were called in early 1848 for a
Prussian National Assembly The Prussian National Assembly () came into being after the revolution of 1848 and was tasked with drawing up a constitution for the Kingdom of Prussia. It first met in the building of the ''Sing-Akademie zu Berlin'' (later the Maxim Gorki Th ...
, with all males 25 and older able to vote. King Frederick William IV and his ministers presented a draft constitution in which the king retained many of his old rights. The Assembly responded with the "Charte Waldeck" which included an expanded list of fundamental rights, a ('people's guard') responsible to parliament and restrictions on feudal rights. The King declared to his ministers that "he would never accept tunder any conditions". On 9 November he adjourned the Assembly and on 5 December 1848 unilaterally imposed the Constitution of 1848. It contained a significant number of liberal elements from the Charte Waldeck, including a parliament with two chambers, the introduction of jury courts, certain limitations on the monarch's powers and a mandate to ensure
legal certainty Legal certainty is a principle in national and international law which holds that the law must provide those subject to it with the ability to regulate their conduct. See also * * *Due process *International human rights law International human ...
. It also guaranteed many fundamental rights such as freedom of speech, the press and religion. In spite of the constitution's liberal clauses, Prussia was still far from a democratic state. The king had an absolute veto over laws, which restricted the separation of powers. It was possible for the monarch to circumvent the judiciary, and the military could be described as a state within the state. All adult male citizens regardless of class had the right to vote, but the
Prussian three-class franchise The Prussian three-class franchise (German: ) was an indirect electoral system used from 1848 until 1918 in the Kingdom of Prussia and for shorter periods in other German states. Voters were grouped by district into three classes, with the total ...
that weighted votes based on the amount of taxes paid significantly limited the political voice of the middle and lower classes. The 1850 Constitution of Prussia was an amended version of the 1848 Constitution. Unlike the earlier version, the 1850 revision was a cooperative effort between the new Prussian Parliament, the King and his ministers. The changes they made to the 1848 Constitution were mostly of a minor nature. The king remained in a position of dominance over the three branches of government, and parliament had no control over the military, but the liberal elements introduced in the 1848 Constitution remained largely in place. The 1850 Constitution, frequently amended, was the fundamental law of Prussia until the end of the German Empire in 1918.


Religion

The Prussian Constitution of 1850 allowed for freedom of conscience, freedom of public and private worship and freedom of association with religious bodies. It stated that all churches and other religious associations should administer everything independently and privately from the state and that no part of the government may affect the Church. The constitution also stated that all children should be taught their religion from people of their own religion and not by someone else. According to a census taken in the early- to mid-1800s, there was a division of six religions around the 1830s: this was, per million inhabitants, 609,427.0 practising Protestants, 376,177.1 practising
Catholics The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...
, 13,348.8 practising Jews, 925.1 Mennonites, 121.4 Greek Orthodox and 0.6
Muslims Muslims () are people who adhere to Islam, a Monotheism, monotheistic religion belonging to the Abrahamic religions, Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God ...
. At this time, the total population was 14,098,125 people, meaning there were approximately 8,591,778 practising Protestants, 5,303,392 practising Catholics, 188,193 practising Jews, 13,042
Mennonite Mennonites are a group of Anabaptism, Anabaptist Christianity, Christian communities tracing their roots to the epoch of the Radical Reformation. The name ''Mennonites'' is derived from the cleric Menno Simons (1496–1561) of Friesland, part of ...
s, 1,712 Greek Orthodox, and 8 Muslims. Although dominated by Protestant Lutherans (along with some Calvinist), it contained millions of Catholics in the west and in Poland. There were numerous Catholic populations in the Rhineland and parts of Westphalia. In addition, West Prussia, Warmia, Silesia, and the province of Posen had predominantly Catholic Polish-speaking populations. East Prussia's southern region of Masuria was mostly made up of Germanised Protestant Masurs.


Ethnicity

Apart from ethnic Germans, the country was also inhabited by
ethnolinguistic Ethnolinguistics (sometimes called cultural linguistics) is an area of anthropological linguistics that studies the relationship between a language or group of languages and the cultural practices of the people who speak those languages. It exa ...
minorities. Minority groups included
Poles Pole or poles may refer to: People *Poles (people), another term for Polish people, from the country of Poland * Pole (surname), including a list of people with the name * Pole (musician) (Stefan Betke, born 1967), German electronic music artist ...
(including
Kashubs The Kashubians (; ; ), also known as Cassubians or Kashubs, are a Lechitic ( West Slavic) ethnic group native to the historical region of Pomerania, including its eastern part called Pomerelia, in north-central Poland. Their settlement area is ...
in West Prussia and Mazurs in East Prussia),
Prussian Lithuanians The Prussian Lithuanians, or Lietuvininkai (singular: ''Lietuvininkas'', plural: ''Lietuvininkai''), are Lithuanians, originally Lithuanian language speakers, who formerly inhabited a territory in northeastern East Prussia called Prussian Lithuan ...
(in East Prussia),
Sorbs Sorbs (; ; ; ; ; also known as Lusatians, Lusatian Serbs and Wends) are a West Slavs, West Slavic ethnic group predominantly inhabiting the parts of Lusatia located in the German states of Germany, states of Saxony and Brandenburg. Sorbs tradi ...
(in Lusatia),
Czechs The Czechs (, ; singular Czech, masculine: ''Čech'' , singular feminine: ''Češka'' ), or the Czech people (), are a West Slavs, West Slavic ethnic group and a nation native to the Czech Republic in Central Europe, who share a common Bohemia ...
and
Moravians Moravians ( or Colloquialism, colloquially , outdated ) are a West Slavs, West Slavic ethnic group from the Moravia region of the Czech Republic, who speak the Moravian dialects of Czech language, Czech or Czech language#Common Czech, Common ...
(in Silesia),
Danes Danes (, ), or Danish people, are an ethnic group and nationality native to Denmark and a modern nation identified with the country of Denmark. This connection may be ancestral, legal, historical, or cultural. History Early history Denmark ...
(in Schleswig),
Jews Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of History of ancient Israel and Judah, ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, rel ...
,
Frisians The Frisians () are an ethnic group indigenous to the German Bight, coastal regions of the Netherlands, north-western Germany and southern Denmark. They inhabit an area known as Frisia and are concentrated in the Dutch provinces of Friesland an ...
,
Dutch Dutch or Nederlands commonly refers to: * Something of, from, or related to the Netherlands ** Dutch people as an ethnic group () ** Dutch nationality law, history and regulations of Dutch citizenship () ** Dutch language () * In specific terms, i ...
,
Walloons Walloons ( ; ; ) are a Gallo-Romance languages, Gallo-Romance ethnic group native to Wallonia and the immediate adjacent regions of Flanders, France, Germany, Luxembourg and the Netherlands. Walloons primarily speak ''langues d'oïl'' such as B ...
, Russians (in Wojnowo (Eckertsdorf)), French,
Italians Italians (, ) are a European peoples, European ethnic group native to the Italian geographical region. Italians share a common Italian culture, culture, History of Italy, history, Cultural heritage, ancestry and Italian language, language. ...
,
Hungarians Hungarians, also known as Magyars, are an Ethnicity, ethnic group native to Hungary (), who share a common Culture of Hungary, culture, Hungarian language, language and History of Hungary, history. They also have a notable presence in former pa ...
and others. Ethnic structure of eastern regions of Prussia.png, Ethnic structure of the eastern regions of Prussia in 1817–1823 Poles Prussia.png, Poles in the Kingdom of Prussia in the 19th century: Poles Prussia 1910.png, Poles in eastern provinces of Germany in 1910:


Subdivisions

The original core regions of the Kingdom of Prussia were the
Margraviate of Brandenburg The Margraviate of Brandenburg () was a major principality of the Holy Roman Empire from 1157 to 1806 that, having electoral status although being quite poor, grew rapidly in importance after inheriting the Duchy of Prussia in 1618 and then came ...
and the
Duchy of Prussia The Duchy of Prussia (, , ) or Ducal Prussia (; ) was a duchy in the region of Prussia established as a result of secularization of the Monastic Prussia, the territory that remained under the control of the State of the Teutonic Order until t ...
which together formed Brandenburg-Prussia. Province of Pomerania (1653-1815), A Further Pomeranian province had been held by Prussia since 1653. Combined with
Swedish Pomerania Swedish Pomerania (; ) was a dominions of Sweden, dominion under the Sweden, Swedish Crown from 1630 to 1815 on what is now the Baltic Sea, Baltic coast of Germany and Poland. Following the Polish-Swedish War, Polish War and the Thirty Years' War ...
, gained from Sweden in 1720 and 1815, this region formed the Province of Pomerania (1815–1945), Province of Pomerania. Prussian gains in the Silesian Wars led to the formation of the Province of Silesia in 1740. After the
First Partition of Poland The First Partition of Poland took place in 1772 as the first of three partitions that eventually ended the existence of the Polish–Lithuanian Commonwealth by 1795. The growth of power in the Russian Empire threatened the Kingdom of Prussia an ...
in 1772, the newly annexed
Royal Prussia Royal Prussia (; or , ) or Polish PrussiaAnton Friedrich Büsching, Patrick Murdoch. ''A New System of Geography'', London 1762p. 588/ref> (Polish: ; German: ) became a province of the Crown of the Kingdom of Poland, which was annexed follow ...
and
Warmia Warmia ( ; Latin: ''Varmia'', ''Warmia''; ; Warmian subdialect, Warmian: ''Warńija''; Old Prussian language, Old Prussian: ''Wārmi'') is both a historical and an ethnographic region in northern Poland, forming part of historical Prussia (reg ...
became the
Province of West Prussia The Province of West Prussia (; ; ) was a province of Prussia from 1773 to 1829 and from 1878 to 1919. West Prussia was established as a province of the Kingdom of Prussia in 1773, formed from Royal Prussia of the Polish–Lithuanian Commonweal ...
, while the Duchy of Prussia (along with part of Warmia) became the
Province of East Prussia East Prussia was a province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's Free State of Prussia, ...
. Other annexations along the Noteć, Noteć (Netze) River became the
Netze District The Netze District or District of the Netze ( or '; ) was a territory in the Kingdom of Prussia from 1772 until 1807. It included the urban centers of Bydgoszcz (''Bromberg''), Inowrocław (''Inowraclaw''), Piła (''Schneidemühl'') and Wałcz ( ...
. Following the second and third partitions (1793–1795), the new Prussian annexations became the provinces of
New Silesia New Silesia ( or ''Neu-Schlesien'') was a small province of the Kingdom of Prussia from 1795 to 1807, created after the Third Partition of Poland. It was located northwest of Kraków and southeast of Częstochowa, in the lands that had been part ...
,
South Prussia South Prussia (; ) was a province of the Kingdom of Prussia from 1793 to 1807 created out of territory annexed in the Second Partition of Poland. History South Prussia was created out of territory annexed in the Second Partition of Poland and i ...
, and New East Prussia, with the Netze District redivided between West and South Prussia. All the acquired Polish lands remained outside of the Holy Roman Empire, and the latter three provinces were disentangled from Prussia following the
Treaties of Tilsit The Treaties of Tilsit (), also collectively known as the Peace of Tilsit (; ), were two peace treaties signed by French Emperor Napoleon in the town of Tilsit in July 1807 in the aftermath of his victory at Friedland, at the end of the War o ...
to be included in the Napoleonic Grand Duchy of Warsaw in 1806, and were ultimately lost to
Congress Poland Congress Poland or Congress Kingdom of Poland, formally known as the Kingdom of Poland, was a polity created in 1815 by the Congress of Vienna as a semi-autonomous Polish state, a successor to Napoleon's Duchy of Warsaw. It was established w ...
after the
Congress of Vienna The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings to discuss and agree upon a possible new layout of the European political and constitutional order after the downfall of the French Emperor Napoleon, Napol ...
in 1815, except for the western part of South Prussia, which would form part of the
Grand Duchy of Posen The Grand Duchy of Posen (; ) was part of the Kingdom of Prussia, created from Prussian Partition, territories annexed by Prussia after the Partitions of Poland, and formally established following the Congress of Vienna in 1815. On 9 February 1 ...
, the latter however also remained outside of
German Confederation The German Confederation ( ) was an association of 39 predominantly German-speaking sovereign states in Central Europe. It was created by the Congress of Vienna in 1815 as a replacement of the former Holy Roman Empire, which had been dissolved ...
, the successor of the dissolved Holy Roman Empire, as did the province of East Prussia and the province of West Prussia. Following the major western gains made by Prussia after the Vienna Congress, a total of ten provinces were established, each one subdivided further into smaller administrative regions known as . The provinces were: * Province of Brandenburg *
Province of East Prussia East Prussia was a province of the Kingdom of Prussia from 1772 to 1829 and again from 1878 (with the Kingdom itself being part of the German Empire from 1871); following World War I it formed part of the Weimar Republic's Free State of Prussia, ...
(outside of German Confederation) * Province of Jülich-Cleves-Berg * Grand Duchy of the Lower Rhine * Province of Pomerania (1815–1945), Province of Pomerania *
Grand Duchy of Posen The Grand Duchy of Posen (; ) was part of the Kingdom of Prussia, created from Prussian Partition, territories annexed by Prussia after the Partitions of Poland, and formally established following the Congress of Vienna in 1815. On 9 February 1 ...
(autonomous, outside of German Confederation) * Province of Saxony * Province of Silesia *
Province of West Prussia The Province of West Prussia (; ; ) was a province of Prussia from 1773 to 1829 and from 1878 to 1919. West Prussia was established as a province of the Kingdom of Prussia in 1773, formed from Royal Prussia of the Polish–Lithuanian Commonweal ...
(outside of German Confederation) * Province of Westphalia In 1822, the provinces of Jülich-Cleves-Berg and the Lower Rhine were merged to form the Rhine Province. In 1829, the provinces of East and West Prussia merged to form the Province of Prussia, but the separate provinces were reformed in 1878. The principalities of
Hohenzollern-Sigmaringen Hohenzollern-Sigmaringen () was a principality in southwestern Germany. Its rulers belonged to the junior House of Hohenzollern#Swabian branch, Swabian branch of the House of Hohenzollern. The Swabian Hohenzollerns were elevated to princes in 162 ...
and
Hohenzollern-Hechingen Hohenzollern-Hechingen () was a small principality in southwestern Germany. Its rulers belonged to the House of Hohenzollern#Swabian branch, Swabian branch of the House of Hohenzollern, Hohenzollern dynasty. History The County of Hohenzollern- ...
were annexed in 1850 to form the
Province of Hohenzollern The Province of Hohenzollern (, ''Hohenzollern Lands'') was a district of Prussia from 1850 to 1946. It was located in Swabia, the region of southern Germany that was the ancestral home of the House of Hohenzollern, to which the kings of Prussia ...
. After Prussia's victory in the 1866
Austro-Prussian War The Austro-Prussian War (German: ''Preußisch-Österreichischer Krieg''), also known by many other names,Seven Weeks' War, German Civil War, Second War of Unification, Brothers War or Fraternal War, known in Germany as ("German War"), ''Deutsc ...
, territories annexed by Prussia were reorganised into three new provinces: * Province of Hanover * Province of Hesse-Nassau * Province of Schleswig-Holstein Map-DB-PrussiaProvs-1818.svg, The ten provinces of the Kingdom of Prussia, after the
Congress of Vienna The Congress of Vienna of 1814–1815 was a series of international diplomatic meetings to discuss and agree upon a possible new layout of the European political and constitutional order after the downfall of the French Emperor Napoleon, Napol ...
. The other member states of the
German Confederation The German Confederation ( ) was an association of 39 predominantly German-speaking sovereign states in Central Europe. It was created by the Congress of Vienna in 1815 as a replacement of the former Holy Roman Empire, which had been dissolved ...
are shown in beige. The Canton of Neuchâtel in the south-west was under Prussian administration until 1848. Germany former prussian lander.png, Map of the current states of Germany (in dark green) that are completely or mostly situated inside the old borders of Imperial Germany's Kingdom of Prussia Polish Prussia and Actual Poland (language neutral).png, Map of current Poland with Polish Prussia in red & pink (borders aligned to Powiat, counties of Poland)


References

Notes Citations Bibliography * * {{DEFAULTSORT:Prussia, Kingdom of Kingdom of Prussia, Former kingdoms Former monarchies of Europe States of the German Confederation States of the North German Confederation States of the German Empire 18th century in Prussia, .Kingdom of Prussia 19th century in Prussia, .Kingdom of Prussia 1900s in Prussia, .Kingdom of Prussia 1910s in Prussia, .Kingdom of Prussia States and territories established in 1701 States and territories disestablished in 1918 1701 establishments in Prussia, .Kingdom of Prussia 1918 disestablishments in Prussia, .Kingdom of Prussia 1701 establishments in the Holy Roman Empire, Kingdom of Prussia 1701 establishments in Europe, Kingdom of Prussia 1918 disestablishments in Europe, Kingdom of Prussia Former countries Christian states