Saint Casimir (1458-1484) was a prince of Poland and Lithuania, son of King Casimir IV. From a young age, he distinguished himself by his piety, his charity towards the poor and his commitment to justice. Refusing a luxurious life and a political marriage, he preferred prayer and asceticism. He briefly governed Hungary, but renounced the throne to remain faithful to his principles. Suffering from tuberculosis, he died at the age of 25. Canonized in 1521, he became the patron saint of Lithuania and of young people. He is often depicted with a lily, a symbol of purity.
