John Frederick I, Elector of Saxony

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John Frederick I
Portrait by Lucas Cranach the Elder, 1531
Elector of Saxony
Reign	16 August 1532 – 24 April 1547
Predecessor	John
Successor	Maurice
Duke of Saxony
Reign	24 April 1547 – 3 March 1554
Predecessor	Maurice
Successor	John Frederick II
Landgrave of Thuringia
Reign	16 August 1532 – 24 April 1547
Predecessor	John
Successor	John Ernest
Born	30 June 1503 Torgau, Electorate of Saxony, Holy Roman Empire
Died	3 March 1554(1554-03-03) (aged 50) Weimar, Electorate of Saxony, Holy Roman Empire
Burial	St. Peter und Paul, Weimar
Spouse	Sybille of Cleves
Issue	John Frederick II, Duke of Saxony John William, Duke of Saxe-Weimar John Frederick III, Duke of Saxe-Gotha
House	Wettin (Ernestine line)
Father	John, Elector of Saxony
Mother	Sophie of Mecklenburg-Schwerin
Religion	Roman Catholic (1503-1521) Lutheran (1521-1554)
Signature

John Frederick I (30 June 1503 in Torgau – 3 March 1554 in Weimar), called the Magnanimous, was the Elector of Saxony (1532–1547) and head of the Schmalkaldic League.