Saint Casimir, Prince of Poland and Duke of Lithuania (died 1484)

Saint Casimir

Lithuanian and Polish saint (1458–1484)

Casimir Jagiellon was a prince of the Kingdom of Poland and of the Grand Duchy of Lithuania. The second son of King Casimir IV Jagiellon, he was tutored by Johannes Longinus, a Polish chronicler, diplomat, and priest. After his elder brother Vladislaus was elected as King of…