Born in 1458, Casimir was the third son of King Casimiar IV of Poland. A shining example of faith, piety, humility and chastity, he had little interest in proposals to arrange an advantageous marriage, and refused to go to war against other Christian princes. His devotion to Our Lady was great; he was so fond of the twelfth-century hymn “Daily, daily, sing to Mary” that it is often attributed to him. He died of tuberculosis in 1484 when he was 26. He was named patron of Poland in 1602. – CTS New Daily Roman Missal 2012, p 2584; Christian Prayer, Saint Paul Publications Philippines 1990, p 1089.
