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224th Roman Pontiff
Pius IV
PIVS Quartus
Giovanni Angelo Medici
223rd Successor of St Peter · 1559–1565 · Italy · b. Milan, Duchy of Milan
1559
Elected
1565
Reign ended
6 years
Length
16th
Century
The Life
Subject of the Duchy of Milan. Reopened and closed the Council of Trent (1563). Ordered public construction to improve the water supply of Rome. Instituted the Tridentine Creed.
Portrait: Circle of Scipione Pulzone / Wikimedia Commons