Magdalene Sibylle of Brandenburg-Bayreuth Electress of Saxony by marriage (1612–1687) Parents Marie of Prussia, Margravine of Brandenburg-Bayreuth Christian, Margrave of Brandenburg-Bayreuth Children Erdmuthe Sophie of Saxony John George III of Saxony Sybille Marie von Sachsen Siblings Georg Albrecht, Margrave of Brandenburg-Bayreuth-Kulmbach Erdmann August of Brandenburg-Bayreuth Anna Maria von Eggenberg, née Brandenburg-Bayreuth Partners John George II, Elector of Saxony
