John Frederick I was the Prince-Elector and Arch-Marshal of the Holy Roman Empire from the Ernestine branch of the Saxon ruling House of Wettin, who initially governed over the Ernestine Electorate of
Portrait by Lucas Cranach the Elder, 1531
Hunt in Honour of Charles V at the Castle of Torgau, by Lucas Cranach the Younger, 1544
Battle of Mühlberg 1547 and imprisonment of Elector John Frederick I of Saxony. Painting from 1630, German Historical Museum, Berlin
John Frederick in captivity, painted by Titian c. 1550–51. Note the scar on the left of his face, received at Mühlberg.
Sibylle of Cleves was electress consort of Saxony.
John Frederick I of Saxony
…condemned John Frederick to death as a convicted rebel; but, not to lose time in the siege of Wittenberg, which was defended by John Frederick's wife, Sybille, he did not execute the sentence and entered into negotiations, focused on the electoral titles and domains. Since the Treaty of Leipzig (1485), the…
Sibylle of Cleves at the time of her betrothal to Electoral Prince John Frederick, by Lucas Cranach the Elder, 1526
Portrait of Electoral Princess Sibylle of Saxony, by Lucas Cranach, 1531
19th-century portrait traditionally identified as Sibylle of Cleves with one of her sons