Margravine Magdalene Sibylle of Brandenburg-Bayreuth

Who was Margravine Magdalene Sibylle of Brandenburg-Bayreuth?

Magdalene Sibylle of Brandenburg-Bayreuth was Electress of Saxony from 1656 to 1680 as the wife of John George II. The daughter of Christian, Margrave of Brandenburg-Bayreuth, and Marie of Prussia, she was by birth a Markgräfin, or Margravine, and a member of the Brandenburg-Bayreuth branch of the House of Hohenzollern.

Born in Bayreuth, she was the fifth child of Christian, Margrave of Brandenburg-Bayreuth, and Marie of Prussia, daughter of Albert Frederick, Duke of Prussia, and Marie Eleonore of Cleves. One of her maternal aunts was Duchess Anna of Prussia. She had three surviving siblings: Anna Maria, wife of Prince Johann Anton I von Eggenberg, Duke of Krumlov; Erdmann August; and George Albert.

She was married to John George, Prince Elector of Saxony, on 13 November 1638 in Dresden. He was her first cousin, being the son of her maternal aunt and namesake, Magdalene Sibylle of Prussia. Her sister-in-law and cousin was Magdalene Sibylle of Saxony.

They had three children:

Sibylle Marie, died young;

Erdmuthe Sophie, married her cousin, Christian Ernst, Margrave of Brandenburg-Bayreuth, on 29 October 1662; died without issue;