Pope Pius IV, born Giovanni Angelo Medici, was head of the Catholic Church and ruler of the Papal States from 25 December 1559 to his death, in December 1565.
Biography from Wikipedia, available under CC BY-SA 4.0.
Also born on March 31
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Also born in 1499
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- Sebald Heyden1499 · German musicologist, cantor, theologian, hymn-writer and religious poet