Cecilia of Brandenburg

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Cäcilie von Brandenburg (* approx. 1405 ; † January 4, 1449 ) was a princess of Brandenburg and by marriage Duchess of Braunschweig-Wolfenbüttel .


Cäcilie was a daughter of the future Elector Friedrich I of Brandenburg (1371–1440) from his marriage to Elisabeth (1383–1442), daughter of Duke Friedrich of Bavaria-Landshut . Elisabeth's brothers were the successive ruling Friedrich II. And Albrecht Achilles , Elector of Brandenburg.

She married Duke Wilhelm I of Braunschweig-Wolfenbüttel (1392–1482) in Berlin on May 30, 1423 . The marriage, like that of her sister Magdalena with Duke Friedrich von Braunschweig-Lüneburg, was arranged by Emperor Sigismund and the sisters were betrothed on March 3, 1420.

Wilhelm and his brother Heinrich had assured Cäcilie as personal treasures of Bodenteich Castle and an annual pension of 2000 guilders. After changing countries, however, Cäcilie was given Wolfenbüttel Castle . Bishop Magnus von Hildesheim tried to redeem pledges from Duke Heinrich and turned his attention to Wolfenbüttel Castle. Cäcilie therefore gave the castle to her brother-in-law Heinrich for protection in 1432, who was able to avert the bishop's claims. Heinrich finally expelled Cäcilie and her children from Wolfenbüttel Castle. Cäcilie is said to have said: “ Your brother did not foresee this and is not up to any gentleman from Braunschweig to do this, even if I were the husband of a poor subject! “Cäcilie, humiliated, went to Schöningen Palace with her children . A quarrel broke out between the brothers. In a settlement carried out in 1432, Heinrich received the Principality of Braunschweig-Wolfenbüttel , while Cäcilie's husband Wilhelm was resigned to the Principality of Calenberg .

Cäcilie was buried in Brunswick Cathedral .


From their marriage Cäcilie had two sons:

⚭ 1. 1463 Princess Anna of Braunschweig-Grubenhagen (1415–1474)
⚭ 2. 1483 Countess Margarethe von Rietberg († 1533/35)
⚭ 1444 Countess Elisabeth zu Stolberg-Wernigerode († 1520/21)


  • Wilhelm Havemann: History of the Lands of Braunschweig and Lüneburg , Dieterich, 1853, p. 667 ff.

Individual evidence

  1. Ernst Daniel Martin Kirchner: The Electors and Queens on the Throne of the Hohenzollern , Volume 1, Wiegandt & Grieben, 1866, p. 27
  2. ^ FAW Dünnemann: Register of the Brandenburg-Prussian regents; or, Genealogical representation of the succession of rulers in Brandenburg: since then the mark has been created except for the present time ... , Nauck, 1831, p. 84