St Casimir (1458 - 1484)

He was the second son of King Casimir IV of Poland. He assiduously cultivated the Christian virtues, especially chastity and generosity to the poor. Zealous in faith, he had a particular devotion to the Eucharist and the Virgin Mary. For several years, while his father was away in Lithuania (the Kings of Poland at this time were also Grand Dukes of Lithuania), he ruled Poland with great prudence and justice. He died of tuberculosis on 4 March 1484.