John Frederick I, Elector of Saxony (died 1554)

John Frederick I, Elector of Saxony

Elector of Saxony from 1532 to 1547

John Frederick I, called the Magnanimous, was the Elector of Saxony (1532–1547) until he was deprived of this title in the Capitulation of Wittenberg by Charles V, Holy Roman Emperor. He was leading the Schmalkaldic League, a military alliance of Lutheran principalities.