St Casimir is patron saint of Poland and Lithuania. He was born in 1458 or 1460, the third of thirteen children of King Casimir IV and Elizabeth of Austria, daughter of Albert II of Habsburg. The young prince was trained in spirituality and displayed holiness at an early age. In contrast to other members of the royal court, he was a shining example of faith and humility.  He had a great love for the Eucharist and for Mary the mother of Jesus.