Saint Cajetan of Thiene was an Italian priest and the co-founder of the Theatines, a religious order established in 1524. Born on October 1, 1480, in Thiene, Italy, he dedicated his life to reforming the clergy and promoting a return to a more devout Christian life. He emphasized the importance of prayer and the sacraments. Cajetan was known for his compassion towards the poor and his efforts to provide for their needs. He played a significant role in the development of the Catholic Church during the Renaissance and was canonized as a saint in 1671. His feast day is celebrated on August 7.