Augustus the Younger, Duke of Brunswick-Lüneburg

For other people of the same name, see Augustus of Brunswick-Lüneburg.

Augustus of Brunswick-Lüneburg
File:August d.J..jpg Augustus of Brunswick-Lüneburg in 1666
Spouse(s)	Clara Maria of Pomerania-Barth Dorothea of Anhalt-Zerbst Elisabeth Sophie of Mecklenburg
Noble family	House of Guelph
Father	Henry, Duke of Brunswick-Lüneburg
Mother	Ursula of Saxe-Lauenburg
Born	(1579-04-10)10 April 1579 Dannenberg
Died	Wolfenbüttel

Augustus of Brunswick-Lüneburg (10 April 1579 – 17 September 1666), called the Younger, was duke of Brunswick-Lüneburg. In the estate division of the House of Welf of 1635, he received the Principality of Wolfenbüttel.

File:Anselmus-van-Hulle-Hommes-illustres MG 0445.tif

August von Brunswick-Lüneburg. Engraving after Anselm van Hulle.

File:Conrad Buno02.jpg

Augustus in his library (1650)
by Conrad Buno

Augustus was born in Dannenberg, the seventh child of Henry, Duke of Brunswick-Lüneburg. After complicated negotiations with his family members and an intervention by Emperor Ferdinand II, it was agreed that he should inherit Wolfenbüttel, whose last ruler had died in 1634. Because of the Thirty Years' War, he could not move into his residence until 1644. Augustus instituted a number of government reforms, and founded the Bibliotheca Augusta, a large library, in Wolfenbüttel (now the Herzog August Bibliothek — "HAB").

Under the pseudonym Gustavus Selenus, he wrote a book on chess in 1616, Chess or the King's Game, and on cryptography in 1624: Cryptomenytices et Cryptographiae libri IX. The pseudonym 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 work by Trithemius.

Augustus died at Wolfenbüttel and was succeeded by his three sons, Rudolph Augustus, Anthony Ulrich, and Ferdinand Albert. His daughter Clara Augusta of Brunswick-Lüneburg married Frederick of Württemberg-Neuenstadt (19 December 1615 – 24 March 1682) on 7 June 1653.

Ancestors

Family of Augustus the Younger, Duke of Brunswick-Lüneburg

16. Otto V of Lüneburg               8. Henry I of Lüneburg                       17. Anna of Nassau-Dillenburg               4. Ernest I, Duke of Brunswick-Lüneburg                             18. Ernest, Elector of Saxony               9. Margarete of Saxony                       19. Elisabeth of Bavaria               2. Henry III, Duke of Brunswick-Lüneburg                                   20. Magnus II, Duke of Mecklenburg (= 30)               10. Henry V, Duke of Mecklenburg-Schwerin                       21. Sophie of Pomerania-Stettin (= 31)               5. Sophia of Mecklenburg-Schwerin                             22. John Cicero, Elector of Brandenburg               11. Ursula of Brandenburg                       23. Margarethe of Saxony               1. Augustus the Younger, Duke of Brunswick-Wolfenbüttel                                         24. John V, Duke of Saxe-Lauenburg               12. Magnus I, Duke of Saxe-Lauenburg                       25. Dorothea of Brandenburg               6. Francis I, Duke of Saxe-Lauenburg                             26. Henry IV, Duke of Brunswick-Lüneburg               13. Catherine of Brunswick-Wolfenbüttel                       27. Catherine of Pomerania               3. Ursula of Saxe-Lauenburg                                   28. Albert III, Duke of Saxony               14. Henry IV, Duke of Saxony                       29. Sidonie of Poděbrady               7. Sybille of Saxony                             30. Magnus II, Duke of Mecklenburg (= 20)               15. Catherine of Mecklenburg                       31. Sophie of Pomerania-Stettin (= 21)

External links

• Bibliotheca Augusta

Augustus the Younger, Duke of Brunswick-Lüneburg House of Welf Cadet branch of the House of Este Born: 10 April 1579 Died: 17 September 1666
Regnal titles
Preceded by Frederick Ulrich	Duke of Brunswick-Lüneburg Prince of Brunswick-Wolfenbüttel 1635–1666	Succeeded by Rudolph Augustus