William IV, Duke of Bavaria
Emperor
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William IV was Duke of Bavaria from 1508 to 1550, until 1545 together with his younger brother Louis X, Duke of Bavaria.
He was born in Munich to Albert IV and Kunigunde of Austria, a daughter of Emperor Frederick III. Wikipedia
Born: November 13, 1493, Munich, Germany
Died: March 7, 1550 (age 56 years), Munich, Germany
Parents: Albert IV, Duke of Bavaria and Kunigunde of Austria
Grandchildren: William V, Duke of Bavaria, Ernest of Bavaria, Maximiliana Maria of Bavaria, and more
Children: Albert V, Duke of Bavaria, Mechthild of Bavaria, and Georg von Hegnenberg-Dux
Spouse: Marie of Baden-Sponheim (m. 1522)
Co-ruler: Louis X (1516–1545)