Union Of Kėdainiai
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The Union of Kėdainiai or Agreement of Kėdainiai ( Lithuanian: ''Kėdainių unija'', Swedish: ''Kėdainiai förbund'') was an agreement between
magnate The term magnate, from the late Latin ''magnas'', a great man, itself from Latin ''magnus'', "great", means a man from the higher nobility, a man who belongs to the high office-holders or a man in a high social position, by birth, wealth or ot ...
s of the
Grand Duchy of Lithuania The Grand Duchy of Lithuania was a sovereign state in northeastern Europe that existed from the 13th century, succeeding the Kingdom of Lithuania, to the late 18th century, when the territory was suppressed during the 1795 Partitions of Poland, ...
and the king of 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 ...
,
Charles X Gustav Charles X Gustav, also Carl X Gustav (; 8 November 1622 – 13 February 1660), was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Kleeburg, John Casimir, Count Palatine of Palatinate-Kleeburg, Zweib ...
, that was signed on 20 October 1655, during the Swedish Deluge 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 ...
.Frost (2000), p. 168 In contrast to the Treaty of Kėdainiai of 17 August, which put Lithuania under Swedish protection, the Swedish–Lithuanian union's purpose was to end the Lithuanian union with Poland and to set up the Grand Duchy of Lithuania as a
protectorate A protectorate, in the context of international relations, is a State (polity), state that is under protection by another state for defence against aggression and other violations of law. It is a dependent territory that enjoys autonomy over ...
under the Swedish Crown with some of the estates being ruled by the Radziwiłł (''Radvila'') family. The agreement was short-lived since the Swedish defeat at the Battles of Warka and Prostki and an uprising organised by the pro-
Commonwealth A commonwealth is a traditional English term for a political community founded for the common good. The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century. Originally a phrase (the common-wealth ...
nobility in Poland and Lithuania put an end to Swedish power and to the Radziwiłłs' influence.


History


Radziwiłłs' influence

The Radziwiłł family owned vast areas of land in Lithuania and Poland, and some of its members were dissatisfied with the role of the magnates, who in Poland–Lithuania theoretically had the same rights as the
Polish nobility The ''szlachta'' (; ; ) were the nobility, noble estate of the realm in the Kingdom of Poland, the Grand Duchy of Lithuania, and the Polish–Lithuanian Commonwealth. Depending on the definition, they were either a warrior "caste" or a social ...
. Eventually, the interests of the wealthy clan, known as the "Family", and the Crown began to drift apart. Janusz Radziwiłł was the head of the Biržai line of Radziwiłłs and a leader of Lithuanian Protestants. He was a
favorite A favourite was the intimate companion of a ruler or other important person. In post-classical and early-modern Europe, among other times and places, the term was used of individuals delegated significant political power by a ruler. It was es ...
of King
Władysław IV Władysław is a Polish given male name, cognate with Vladislav. The feminine form is Władysława, archaic forms are Włodzisław (male) and Włodzisława (female), and Wladislaw is a variation. These names may refer to: People Mononym * Włodzis ...
, from whom he received the position of Lithuanian Field Hetman, but was an ardent opponent of his brother and successor John Casimir. Shortly after his election in 1649, he supported
George II Rákóczi George II Rákóczi (30 January 1621 – 7 June 1660), was a Hungarian nobleman, Prince of Transylvania (1648-1660), the eldest son of George I and Zsuzsanna Lorántffy. Early life He was elected Prince of Transylvania during his father' ...
's efforts to seize the Polish throne by making a deal with Transylvania. At the same time, he established contacts with Sweden for the first time, seeking to separate Lithuania from the Crown. In the following years, Janusz Radziwiłł grew closer to the king, taking part in battles against the Cossacks in Ukraine. He took advantage of his successes by forcing the king to appoint him
voivode of Vilnius The Voivode of Vilnius (, ) was a high-ranking Voivode#Commonwealth of Poland–Lithuania, officer in the Grand Duchy of Lithuania who governed the Vilnius Voivodeship from 1413. He was considered as the most influential member of the Lithuanian Co ...
and grand hetman of Lithuania, thus making him the most important dignitary in Lithuania. However, the king, wanting to limit Radziwiłł's omnipotence, made loyal Wincenty Gosiewski field hetman and treasurer of Lithuania, and divided the Lithuanian army into two divisions. In the face of the Russian invasion, Radziwiłł refused to take offensive action and demanded that the king conclude a truce with Moscow and enter into alliance talks with Sweden. At the same time, Radziwiłł re-established contacts with George II Rákóczi urging him to claim the Polish throne and promising his support. The king in turn planned to deprive him of his Hetman's office.


Russian and Swedish invasion

On October 3, 1654,
Smolensk Smolensk is a city and the administrative center of Smolensk Oblast, Russia, located on the Dnieper River, west-southwest of Moscow. First mentioned in 863, it is one of the oldest cities in Russia. It has been a regional capital for most of ...
, the only major fortress capable of stopping the march of the Russian army deep into Lithuania, fell. At this point Radziwiłł entered into secret talks with Sweden seeking an agreement with them. But as he was still hoping to establish an alliance between the Commonwealth and Sweden, upon hearing of the ongoing negotiations he set out in the spring of 1655 on an expedition deep into Belarus against the Russian army. In 1654, during the Swedish-Russian invasion of Poland, known as The Deluge, two notable princes of the Radziwiłł clan,
Janusz Janusz is a masculine Polish given name. It is also the shortened form of January and Januarius. People * Janusz Akermann (born 1957), Polish painter * Janusz Bardach, Polish gulag survivor and physician * Janusz Bielański, Roman Catholic pr ...
and Bogusław, began negotiations with Swedish King
Charles X Gustav Charles X Gustav, also Carl X Gustav (; 8 November 1622 – 13 February 1660), was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Kleeburg, John Casimir, Count Palatine of Palatinate-Kleeburg, Zweib ...
that were aimed at dissolving 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 ...
and the Union. In July 1655, Swedish troops crossed the borders of the Commonwealth. The first attack on July 24 was directed at
Greater Poland Greater Poland, often known by its Polish name Wielkopolska (; ), is a Polish Polish historical regions, historical region of west-central Poland. Its chief and largest city is Poznań followed by Kalisz, the oldest city in Poland. The bound ...
. The Crown army, consisting mostly of pospolite ruszenie and devoid of a commander, capitulated before the Swedes. The capitulation, signed at Ujście, severed the relations of the Greater Poland voivodeships with the rest of the state, which had recognized
Charles X Gustav Charles X Gustav, also Carl X Gustav (; 8 November 1622 – 13 February 1660), was King of Sweden from 1654 until his death. He was the son of John Casimir, Count Palatine of Kleeburg, John Casimir, Count Palatine of Palatinate-Kleeburg, Zweib ...
as its ruler. Lithuania was then in turmoil and was being attacked on two separate fronts by Russia and Sweden, and a Ukrainian peasant revolt, known as the
Khmelnytsky Uprising The Khmelnytsky Uprising, also known as the Cossack–Polish War, Khmelnytsky insurrection, or the National Liberation War, was a Cossack uprisings, Cossack rebellion that took place between 1648 and 1657 in the eastern territories of the Poli ...
, was spilling into the Grand Duchy's southern regions from
Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...
.


Secret talks with Sweden

Swedish troops also entered
Duchy of Livonia The Duchy of Livonia, also referred to as Polish Livonia or Livonia, was a territory of the Grand Duchy of Lithuania and later the Polish–Lithuanian Commonwealth that existed from 1561 to 1621. It corresponds to the present-day areas of northe ...
capturing Dyneburg on July 17. At the same time, Russian and Cossack armies took offensives approaching Vilnius. The Lithuanian army was few in number. It consisted of three parts: the ''wojsko zaciężne'', the crown reinforcements and the ''pospolite ruszenie''. The crown reinforcements constituted a considerable force of up to 5,000 men. The ''wojsko zaciężne'' was of similar size, the size of the ''pospolite ruszenie'' is unknown, but it did not represent much military value. In early July, the king ordered the Crown army to leave Lithuania and head for Prussia. This act removed any hope of an effective defense of the Grand Duchy. In view of this, on July 29, Vilnius voivode Janusz Radziwiłł, Vilnius bishop Jerzy Tyszkiewicz and Lithuanian equerry
Bogusław Radziwiłł Bogusław Radziwiłł (; 3 May 1620 – 31 December 1669) was a Polish princely magnate and a member of the Polish-Lithuanian ''szlachta'', or nobility. He was of the Radziwiłł magnate family. By birth he was an Imperial Prince of the ...
called on the Swedish army for help. Swedish troops entered Lithuania essentially as allies. The Lithuanian lords probably knew about the events in Ujście. They placed themselves under the protection of the Swedish king, with no obligation to swear an oath of allegiance or sever ties with the Polish Crown. The proposals envisioned a union of the three states, or only Sweden and Lithuania, if Poland found itself under alien ruler. At the same time, both Radzwills demanded the creation of fiefdoms for themselves, separate from the Grand Duchy, and covering much of its territory, as well as parts of the Crown. Meanwhile, the Swedes also held talks with the Russians, to whom they proposed various lines for dividing the Grand Duchy's territory between them. Earlier, on August 3, royal secretary Krzysztof Scipio del Campo of Jan Kazimierz arrived in Lithuania, with permission for the Lithuanian lords to enter into truce talks with Moscow and Sweden. The proposals for talks were rejected by the tsarist army, which captured Vilnius on August 9. Part of the army, having received no pay, left the ranks of the army after the fall of Vilnius. On August 10 in Riga, Magnus de la Gardie accepted the Lithuanian terms brought by Gabriel Lubieniecki but not without changes, taking the Grand Duchy under his protection on behalf of the Swedish king. The Lithuanian army was to be attached to the Swedish one, the Grand Duchy was to take on the maintenance of the entire army, the Swedes were to take control of all fortresses. The question of the Grand Duchy's relationship to the Crown and Sweden and the fief principalities for the Radziwiłłs was omitted. On August 11, he called on the tsar's commanders to stop further march deep into Lithuania, which is under the protection of the Swedish king.


Act of Josvainiai

Lubieniecki returned to Janusz Radziwiłł on August 15, who was not fully satisfied with the negotiated terms, but accepted them. And with him 436 people at the Josvainiai convention, among them field hetman Wincenty Gosiewski,
castellan A castellan, or constable, was the governor of a castle in medieval Europe. Its surrounding territory was referred to as the castellany. The word stems from . A castellan was almost always male, but could occasionally be female, as when, in 1 ...
of Samogitia Eustachy Kierdej, and Vilnius canon Jerzy Białłozor. But again conditions were changed, they stipulated the separation of the Grand Duchy of Lithuania from Sweden, the inviolability of the union with the Crown, joint participation with the Crown in the peace talks, the non-use of Lithuanian troops against Polish ones, only temporary surrender of fortresses, and agreed to a possible union with Sweden, but on an equal basis. On 17 August, Janusz Radziwiłł signed the Treaty of Kėdainiai (''Instrumentum Lithuanicae deditionis''), which placed the Grand Duchy under Swedish protection. The nobility gathered in Braslaw, 116 in number, also approved the act, along with 38 exulants, 3 clergymen and 3 townsmen. A number of lords, however, refused to endorse the act, among them the bishop of Samogitia, Piotr Parczewski, and the starosta of Samogitia, Jerzy Karol Hlebowicz. Similarly, the nobility gathered around
Grodno Grodno, or Hrodna, is a city in western Belarus. It is one of the oldest cities in Belarus. The city is located on the Neman, Neman River, from Minsk, about from the Belarus–Poland border, border with Poland, and from the Belarus–Lithua ...
rejected the act of Josvainiai, remaining loyal to John II Casimir. Soldiers who denounced obedience to the hetmans, as well as the nobility of Brest voivodeship, formed a confederation on August 23 in defense of the Fatherland and King John II Casimir in Virbalis, led by voivode of Witebsk Paweł Sapieha. Eventually, most of the Polish-controlled Lithuanian army surrendered to the Swedes, and the state collapsed. Most of the
Crown of Poland The Crown of the Kingdom of Poland (; ) was a political and legal concept formed in the 14th century in the Kingdom of Poland, assuming unity, indivisibility and continuity of the state. Under this idea, the state was no longer seen as the pa ...
, along with west of
Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...
, was occupied by Swedish forces, and the Russians seized most of Lithuania (except
Samogitia Samogitia, often known by its Lithuanian language, Lithuanian name ''Žemaitija'' (Samogitian language, Samogitian: ''Žemaitėjė''; see Samogitia#Etymology and alternative names, below for alternative and historical names) is one of the five ...
and parts of
Suvalkija Suvalkija or Sudovia ( or ''Sūduva'') is the smallest of the five cultural regions of Lithuania. Its unofficial capital is Marijampolė. People from Suvalkija (Suvalkijans) are called (plural) or (singular) in Lithuanian. It is located sout ...
and
Aukštaitija Aukštaitija (; literally ''Highland'' or ''Upland'') is the name of one of five ethnographic regions of Lithuania. The name comes from the fact that the lands are in the upper basin of the Nemunas, as opposed to the Lowlands that begin from Š ...
). The August 17 act was not approved by the Swedes, who did not want war with Moscow, but with the Crown. Nonetheless, the Swedes moved their troops led by Gustaf Adolf Lewenhaupt into the strongholds of
Biržai Biržai (, also known by several alternative names) is a city in northern Lithuania. Famous for its reconstructed Biržai Castle manor, the whole region is renowned for its many traditional-recipe beer breweries. Name The exact origin of th ...
and
Radviliškis Radviliškis () (; ; , ''Radvilishok'') is a city in the Radviliškis district municipality, Šiauliai County, Lithuania. Radviliškis has been the administrative center of the district since 1950, and is an important railway junction. History ...
. On September 17,
Bengt Skytte Bengt Skytte af Duderhof (1614–1683) was a Swedish courtier and diplomat. He was a follower of Comenius and proposed a Pansophism, pansophic city, "Sophopolis". Early life He was the son of Johan Skytte and Maria Näf (Neaf) and brother of Vend ...
arrived in Kėdainiai. Negotiations on a new treaty began.


Treaty of Kėdainiai

Despite the officially proclaimed protection of the Swedish king, the Moscow army continued its march deep into Lithuania, occupying
Kaunas Kaunas (; ) is the second-largest city in Lithuania after Vilnius, the fourth largest List of cities in the Baltic states by population, city in the Baltic States and an important centre of Lithuanian economic, academic, and cultural life. Kaun ...
(August 16) and
Grodno Grodno, or Hrodna, is a city in western Belarus. It is one of the oldest cities in Belarus. The city is located on the Neman, Neman River, from Minsk, about from the Belarus–Poland border, border with Poland, and from the Belarus–Lithua ...
(August 18). Moscow then demanded the renunciation of its claims to Lithuania, in exchange for a guarantee of the inviolability of Courland and Prussia. At the same time, Moscow's deputy Vasily Likhariev arrived in Kėdainiai on August 30, promising to preserve rights, property and religious freedom in exchange for surrender to the tsar. Janusz Radziwiłł rejected these proposals, giving the existing agreement with Sweden as the reason. Field hetman Wincenty Gosiewski was of different opinion, he was ready to make territorial concessions in exchange for the Commonwealth's anti-Swedish alliance with Moscow. Nothing came of the talks, and on September 9 the tsar adopted the title of Grand Duke of Lithuania. On October 10, Magnus Gabriel De la Gardie arrived in Kėdainiai in an attempt to force the nobility to sign the final agreement. Janusz Radziwiłł's position was becoming weaker and weaker, he himself was constrained by private deals with the Swedes, and he was losing supporters. The Samogitian nobility, gathered in Kėdainiai, formed a confederation manifesting their separateness. Bishop Jerzy Tyszkiewicz was away in
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 ...
, and Bogusław Radziwiłł in his estates in Podlachia. On September 29, 1655, the army loyal to Janusz Radziwiłł, Cyprian Paweł Brzostowski in his letter to Bogusław Radziwiłł estimates at "under a thousand"; at the time, these were exclusively foreign contingents. Particularly painful for the hetman was the departure from the ranks of his army by the
hussar A hussar, ; ; ; ; . was a member of a class of light cavalry, originally from the Kingdom of Hungary during the 15th and 16th centuries. The title and distinctive dress of these horsemen were subsequently widely adopted by light cavalry ...
and armoured banners, but these returned to his command later and served him until his death. On 20 October 1655, Janusz Radziwiłł signed an agreement with the Swedes at his castle at
Kėdainiai Kėdainiai () is one of the oldest List of cities in Lithuania, cities in Lithuania. It is located north of Lithuania's second largest city Kaunas on the banks of the Nevėžis River. Kėdainiai were first mentioned in the 1372 Livonian Chronicle ...
. According to the treaty, signed by over 1,000 members of the
Lithuanian nobility The Lithuanian nobility () or ''szlachta'' of the Grand Duchy of Lithuania (, ) was historically a legally privileged hereditary elite class in the Grand Duchy of Lithuania and Polish Lithuanian Commonwealth (including during period of foreign r ...
, the Polish–Lithuanian Union was declared null and void. In exchange for military assistance against Russia, the Grand Duchy of Lithuania would become a protectorate of
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 ...
, with 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 ...
joining both states. In Lithuania, the king was to be represented by his governor (Magnus Gabriel De la Gardie, later Bengt Skytte with the title of legate), who did not have to be a citizen of the Grand Duchy. He was to be assisted in governing by deputies, three from each
powiat A ''powiat'' (; ) is the second-level unit of local government and administration in Poland, equivalent to a county, district or prefecture (Local administrative unit, LAU-1 ormerly Nomenclature of Territorial Units for Statistics, NUTS-4 ...
. The armies were to be united, the nobility lost the right to free election and influence over declaring war and making peace. Other rights and religious freedoms were preserved. In addition, ''The Family'' would be given two sovereign principalities carved from its lands within the Grand Duchy, and the Lithuanian nobility would retain its liberties and privileges. Janusz Radziwiłł signed a private agreement with the Swedes, under which he received large territorial concessions and revenues; his nephew Bogusław similarly, but on a smaller scale.


Aftermath

The signing of the Kėdainiai Treaty strengthened Swedish rule in Lithuania in the short term and weakened the forces loyal to the Commonwealth and John II Casimir. King John II Casimir, who was staying in Silesia, took Paweł Sapieha's confederates into the pay of the Crown treasury. On September 10, he granted them the traitors' estates in Lithuania. Instead of attempting to join the royal forces, they began plundering Radziwiłł's estates. They then entered into negotiations with Moscow, proposing a truce. This had little effect, and after October 20 Moscow took a further offensive, defeating Sapieha's troops. At the same time, Paweł Sapieha maintained contacts with the Swedes, through the Swedish envoy Jan Fryderyk Sapieha. He eventually accepted the Swedish king's protection on December 5. Its main proponent, Janusz Radziwiłł, died only two months after it was signed, on 31 December at
Tykocin Castle The Tykocin Royal Castle is a 15th-century castle located on the right bank of the river Narew in Tykocin, Poland. It fell into ruin in the 18th century and its reconstruction began in 2002. History The castle – then located on a border area ...
, which was then besieged by forces loyal to the King of Poland and the Grand Duke of Lithuania, John II Casimir. The castle was soon taken by
Paweł Jan Sapieha Paul John Sapieha () (1609–1665) was a Polish–Lithuanian nobleman (szlachcic). Sapieha became a Hussar Rotmistrz in 1633, courtier in 1635, Obozny of Lithuania in 1638, Podstoli of Lithuania in 1645, voivode of the Vitebsk Voivodeshi ...
, who immediately succeeded Janusz Radziwiłł to the office of Grand Hetman of Lithuania. The tide of the war soon turned and a popular uprising in Poland broke the power of the Swedish army. The Swedish occupation of Lithuania sparked a similar uprising in Lithuania. The Swedish defeat and the eventual retreat from the territories of the Commonwealth abruptly ended the plans of Janusz's cousin Bogusław, who lost his army in the Battle of Prostki and died in exile in
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 ...
on 31 December 1669. With the passing of both cousins, the Radziwiłł family fortunes waned. Bogusław became commonly known as ''Gnida'' ("
Louse Louse (: lice) is the common name for any member of the infraorder Phthiraptera, which contains nearly 5,000 species of wingless parasitic insects. Phthiraptera was previously recognized as an order (biology), order, until a 2021 genetic stud ...
") by his fellow
nobles Nobility is a social class found in many societies that have an aristocracy. It is normally appointed by and ranked immediately below royalty. Nobility has often been an estate of the realm with many exclusive functions and characteristics. T ...
, and Janusz was called ''Zdrajca'' ("Traitor"). Their treason against the Commonwealth largely overshadowed the deeds of the next generation's numerous other family members, including
Michał Kazimierz Radziwiłł Prince Michał Kazimierz Radziwiłł (; 26 October 1625 or 26 October 1635 – 14 November 1680) was a Polish–Lithuanian noble and magnate. He is sometimes referred to as ''the first'' Michał Kazimierz Radziwiłł, to distinguish ...
(1625–1680), who served faithfully against the Swedes.


Assessment

Although seen as an act of treason by contemporaries, modern views on the Swedish–Lithuanian accord differ. Some argue that the arrangement with the Swedes was made by Janusz Radziwiłł not out of greed and the political ambition, but rather out of
Realpolitik ''Realpolitik'' ( ; ) is the approach of conducting diplomatic or political policies based primarily on considerations of given circumstances and factors, rather than strictly following ideological, moral, or ethical premises. In this respect, ...
. According to another theory, Janusz Radziwiłł was merely attempting to secure a strong ally against Russia. The Grand Duchy of Lithuania lacked the resources to fight a war on two fronts, and the Polish Crown, which now had its own serious problems and could supply only trifling amounts of money and military forces. However, some Lithuanian intellectuals during the
National Revival National revival or national awakening is a period of ethnic self-consciousness that often precedes a political movement for national liberation but that can take place at a time when independence is politically unrealistic. In the history of Euro ...
, including
Maironis Maironis (born Jonas Mačiulis, ; – 28 June 1932) was a Lithuanians, Lithuanian Roman Catholic priest and the greatest and most-known Lithuanian poet, especially of the period of the Lithuanian press ban. He was called the Bard of Lithuanian Na ...
, praised the Lithuanian nobility for trying to secede from Poland and secure the sovereignty of Lithuania. In 1995, Lithuania and Sweden have celebrated the 340th anniversary of the union as a symbol of friendship and historical bonds shared by the two countries. Gerner, Kristian (2002). ''The Swedish and the Polish-Lithuanian Empires and the formation of the Baltic Region''. Baltic University. p. 65.


See also

*
Polish–Swedish union The Polish–Swedish union was a short-lived personal union between the Polish–Lithuanian Commonwealth and the Kingdom of Sweden between 1592 and 1599. It began when Sigismund III Vasa, elected King of Poland and Grand Duke of Lithuania, wa ...


Sources


References


Bibliography

* * * * * {{DEFAULTSORT:Union Of Kedainiai Northern War of 1655–1660 1655 in Lithuania 1655 in the Polish–Lithuanian Commonwealth 1655 treaties Kedainiai 1655 in Sweden Lithuania–Sweden relations Personal unions