St. Cajetan was born in 1480 to a noble family. Cajetan was well-educated, and worked as a jurist for Pope Julius II until the pope died, and Cajetan began studying to be a priest. The Congregation of Clerks Regular, also known as the Theatines, lived simple lives of prayer and worked closely with the poor. Cajetan was known for his charity and his concern for the poor. In 1533, Cajetan founded a house of his order in Naples.