Augustus II (10 April 1579 – 17 September 1666), called the Younger (), a member of the
House of Welf
The House of Welf (also Guelf or Guelph) is a European dynasty that has included many German and British monarchs from the 11th to 20th century and Emperor Ivan VI of Russia in the 18th century. The originally Franconian family from the Meuse-Mo ...
was
Duke of Brunswick-Lüneburg. In the estate division of the
House of Welf
The House of Welf (also Guelf or Guelph) is a European dynasty that has included many German and British monarchs from the 11th to 20th century and Emperor Ivan VI of Russia in the 18th century. The originally Franconian family from the Meuse-Mo ...
of 1635, he received the
Principality of Wolfenbüttel which he ruled until his death. Considered one of the most literate princes of his time, he is known for founding the
Herzog August Library at his
Wolfenbüttel
Wolfenbüttel (; ) is a town in Lower Saxony, Germany, the administrative capital of Wolfenbüttel District
Wolfenbüttel (; ) is a town in Lower Saxony, Germany, the administrative capital of Wolfenbüttel (district), Wolfenbüttel Distri ...
residence, then the largest collection of books and
manuscript
A manuscript (abbreviated MS for singular and MSS for plural) was, traditionally, any document written by hand or typewritten, as opposed to mechanically printed or reproduced in some indirect or automated way. More recently, the term has ...
s north of the Alps.
Life
Augustus was born at
Dannenberg Castle, the seventh child of Duke
Henry of Brunswick-Lüneburg (1533–1598). His father had ruled over the Brunswick
Principality of Lüneburg
The Principality of Lüneburg (later also referred to as Celle) was a territorial division of the Duchy of Brunswick-Lüneburg within the Holy Roman Empire, immediately subordinate to the emperor. It existed from 1269 until 1705 and its territory ...
, jointly with his younger brother
William
William is a masculine given name of Germanic languages, Germanic origin. It became popular in England after the Norman Conquest, Norman conquest in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle ...
, since 1559. Ten years later, however, upon his marriage with Ursula, a daughter of the
Ascanian duke
Francis I of Saxe-Lauenburg, he had to waive all rights and claims and was compensated with the small Dannenberg lordship. Moreover, he received an annual payment and had reserved the inheritance right of his descendants should the Brunswick-Wolfenbüttel line become extinct.
Augustus, as the seventh and youngest child, had little chance to take up any rule in the Brunswick lands. He concentrated on his studies in
Rostock
Rostock (; Polabian language, Polabian: ''Roztoc''), officially the Hanseatic and University City of Rostock (), is the largest city in the German States of Germany, state of Mecklenburg-Vorpommern and lies in the Mecklenburgian part of the sta ...
,
Tübingen
Tübingen (; ) is a traditional college town, university city in central Baden-Württemberg, Germany. It is situated south of the state capital, Stuttgart, and developed on both sides of the Neckar and Ammer (Neckar), Ammer rivers. about one in ...
, and
Straßburg. Afterwards, he travelled on a ''
Grand Tour'' through
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 ...
,
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 ...
, 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 ...
, and
England
England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
. Back in Germany at the age of 25, he took his residence in
Hitzacker
Hitzacker is a town in the Lüchow-Dannenberg district of Lower Saxony, Germany. It is situated on the river Elbe, approx. 8 km north of Dannenberg, and 45 km east of Lüneburg. The 2007 population of Hitzacker was 4,982, and its po ...
, where he spent the next three decades with a small court, continuing his studies.
Succession arose in the midst 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 ...
, when the last Wolfenbüttel prince, Duke
Frederick Ulrich of Brunswick-Lüneburg died without heirs in 1634. After lengthy and complicated negotiations with his reluctant Welf relatives and an intervention by Emperor
Ferdinand II, it was finally agreed that Augustus should inherit the Wolfenbüttel principality. Because of the ongoing war, he had to stay at
Dankwarderode Castle in
Braunschweig
Braunschweig () or Brunswick ( ; from Low German , local dialect: ) is a List of cities and towns in Germany, city in Lower Saxony, Germany, north of the Harz Mountains at the farthest navigable point of the river Oker, which connects it to the ...
and could not move to his residence until 1644. Soon after, Augustus instituted a number of government reforms, and founded the ''Bibliotheca Augusta'' (now the Herzog August Bibliothek). After the 1648
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 ...
, the Wolfenbüttel lands recovered quickly under his capable rule.

Augustus was a promoter of German as language of literature. Under the
pseudonym
A pseudonym (; ) or alias () is a fictitious name that a person assumes for a particular purpose, which differs from their original or true meaning ( orthonym). This also differs from a new name that entirely or legally replaces an individual's o ...
Gustavus Selenus, he translated a book on
rithmomachia by the mathematician
Francesco Barozzi, wrote a book on
chess
Chess is a board game for two players. It is an abstract strategy game that involves Perfect information, no hidden information and no elements of game of chance, chance. It is played on a square chessboard, board consisting of 64 squares arran ...
in 1616, ''
Chess or the King's Game
''Chess or the King's Game'' () is a book on chess. It was published in Leipzig in 1616 under the name of ''Gustavus Selenus'' ("Gustavus" being an anagram of "Augustus" and "Selenus" referring to the Greek moon goddess Selene, linked to the Lat ...
'', and a standard reference on
cryptography
Cryptography, or cryptology (from "hidden, secret"; and ''graphein'', "to write", or ''-logy, -logia'', "study", respectively), is the practice and study of techniques for secure communication in the presence of Adversary (cryptography), ...
in 1624: ''Cryptomenytices et Cryptographiae libri IX'' (Gustavi Seleni). The pseudonym itself is a cryptic reference to his name, Gustavus anagrams (with U=V) to Augustus, the surname is a play on the Greek goddess of the moon (Selene). The book on cryptography is largely based on earlier works by
Johannes Trithemius
Johannes Trithemius (; 1 February 1462 – 13 December 1516), born Johann Heidenberg, was a German Benedictine abbot and a polymath who was active in the German Renaissance as a Lexicography, lexicographer, chronicler, Cryptography, cryptograph ...
and also describes the work of
Abramo Colorni.
The duke employed the scholar
Justus Georg Schottel as tutor of his sons; he also kept an active correspondence with
Johannes Valentinus Andreae, a founder of the esoteric
Rosicrucianism
Rosicrucianism () is a spiritual and cultural movement that arose in early modern Europe in the early 17th century after the publication of several texts announcing to the world a new esoteric order. Rosicrucianism is symbolized by the Rose ...
movement. In 1632 he met with Prince
Louis I of Anhalt-Köthen and joined his
Fruitbearing Society.
Augustus died at Wolfenbüttel and was succeeded by his eldest son
Rudolph Augustus.
Marriage and children

In December 1607 he married
Clara Maria of Pomerania-Barth, the eldest daughter of the
Griffin
The griffin, griffon, or gryphon (; Classical Latin: ''gryps'' or ''grypus''; Late and Medieval Latin: ''gryphes'', ''grypho'' etc.; Old French: ''griffon'') is a -4; we might wonder whether there's a point at which it's appropriate to talk ...
duke
Bogislaw XIII of Pomerania. The marriage produced two stillborn children. Clara Maria died in February 1623.
In October 1623 Augustus married
Dorothea of Anhalt-Zerbst, daughter of the
Ascanian prince
Rudolph of Anhalt-Zerbst. They had the following children:
* Henry August (13 September 1625 – 19 February 1627) died in early childhood.
*
Rudolph Augustus (1627–1704), Duke of Brunswick-Lüneburg and Duke of Brunswick-Wolfenbüttel, married firstly, in 1650 Countess Christiane Elisabeth of Barby (1634-1681), married secondly, in 1681
Rosine Elisabeth Menthe (1663-1701)
*
Sibylle Ursula (1629–1671), married in 1663 Duke Christian of Schleswig-Holstein-Glücksburg (1627-1698, son of
Philip, Duke of Schleswig-Holstein-Sonderburg-Glücksburg)
* Klara Auguste (25 June 1632 – 6 October 1700), married in 1653 Duke
Frederick of Württemberg-Neuenstadt (1615-1682)
*
Anton Ulrich (1633–1714), Duke of Brunswick-Wolfenbüttel, married in 1656 princess Elisabeth Juliane of Schleswig-Holstein-Norburg (1634-1704).
Dorothea died in September 1634 and in 1635 Augustus married
Duchess Elisabeth Sophie of Mecklenburg, daughter of Duke
John Albert II of Mecklenburg. They had two surviving children:
*
Ferdinand Albert I (1636-1687), Duke of Brunswick-Lüneburg, married in 1667 Christine of Hesse-Eschwege (1649-1702)
*
Marie Elisabeth (1638-1687), married firstly, in 1663
Adolf William, Duke of Saxe-Eisenach, married secondly, in 1676
Albert V, Duke of Saxe-Coburg.
Ancestors
References
Bibliography
*
*
External links
Bibliotheca Augusta
{{DEFAULTSORT:Augustus The Younger, Duke of Brunswick-Luneburg
1579 births
1666 deaths
People from Dannenberg (Elbe)
Princes of Wolfenbüttel
17th-century cryptographers
German chess players
German chess writers
German male non-fiction writers
New House of Brunswick