Magdalene Sibylle Of Prussia

She was born in Königsberg, the daughter of Albert Frederick, Duke of Prussia and Marie Eleonore of Cleves. She married John George on 19 July 1607 in Torgau. She was the great-granddaughter of Holy Roman Emperor Ferdinand I. She is also, for all intents and purposes, an ancestor of Augusta of Saxe-Gotha, mother of King George III of England. In this way, she linked the ancestry of the British monarchs to the Catholic monarchs. She was the niece of Queen Maria Eleonora of Brandenburg of Sweden, and she was interested in painting, poetry, and gardening. She used Swedish prisoners of war in the construction of Dresdner Festungsbau ("Dresden Fortress"). Widowed in 1656, she retired to the Dresdner Kurfürstienhaus, where she died in Dresden in 1659.

She had 10 children. Stillborn Son (Dresden, July 18, 1608) Sophie Eleonore (Dresden, 23 November 1609 – Darmstadt, 2 June 1671), married 1 April 1627 to George II, Landgrave of Hesse-Darmstadt. Marie Elisabeth (Dresden, 22 November 1610 – Husum, 24 October 1684), married Frederick III, Duke of Holstein-Gottorp, on 21 February 1630. Christian Albert (Dresden, March 4, 1612 – Dresden, August 9, 1612) Johann Georg II (Dresden, May 31, 1613 – Freiberg, August 22, 1680), his father's successor Elector of Saxony Augustus (Dresden, August 13, 1614 - Halle, August 4, 1680) succeeded as Duke of Weissenfels. Christian I (Dresden, October 27, 1615 – Merseburg, October 18, 1691), succeeded Merseburg as duke. Sybil Magdalene (Dresden, December 23, 1617 – Altenburg Castle, January 6, 1668) first met Crown Prince Christian, eldest son and successor of King Christian IV of Denmark, on October 5, 1634. Married. The second time, on October 11, 1652, was addressed to Frederick William II, Duke of Saxe-Altenburg. Maurice (Dresden, March 28, 1619 – Moritzburg, December 4, 1681), successor to Duke of Zeitz Heinrich (Dresden, June 27, 1622 – Dresden, August 15, 1622).

Franz Otto Stichhardt: Gallery of the Princess of Saxony. Biogra. A sketch of all the ancestors of the Saxon royal family. leipzig 1857 Heinrich Theodor Frate: Magdalena Sibylla. Published in: General German Biography (ADB). Volume 20, Dancker & Humbro, Leipzig, 1884, p. 49.