John George III was born in 1647 to the house of Wettin. He was the Elector of Saxony, one of the electors of the Holy Roman Empire. His tropps defeated the Turks at Vienna which marked the end of their invasion in Europe.
Magdalene Wettin Hohenzollern was born in 1507 and died 1534.
She was the daughter of George the Bearded Wettin, Duke of Saxony and his wife Barbara (daughter of Casimir IV and Elisabeth Habsburg.
Johann Georg or JohnGeorge I Wettin, JohnGeorge II Wettin, JohnGeorgeIIIWettin and JohnGeorg IV Wettin (brother of Frederick Augustus I the Strong are descendants.
George William, however, took Ratzeburg, and held it against the troops of a third claimant, Christian V., king of Denmark; and in 1702 he bought off the claim of JohnGeorge, his successor being invested with the duchy in 1728.
JohnGeorge was an amiable but weak prince, totally unfitted to direct the fortunes of a nation in time of danger.
John Frederick, who had retained and transmitted to his descendants the title of duke of Saxony, forbade his sons to divide their inheritance; but his wishes were respected only until after the death of his eldest son in 1565.