Saints.SQPN.com: Saint Casimir of Poland

Fifteenth century Polish prince, the younger son of King Casimir IV of Poland and Elizabeth of Austria. Grand Duke of Lithuania in 1471; third in line for the throne. Lived a highly disciplined, even severe life, sleeping on the ground, spending a great part of the night in prayer, dedicating himself to lifelong celibacy. He had a great devotion to Mary, supported the poor, and lived a virtuous life amid the dissolute court....