With John Peter Carafa, the future Pope Paul IV, Cajetan of Thiene founded in 1523 the first congregation of Clerks Regular, a new form of institute which corresponded with the needs of the time. Trust in God was its principal rule; its members were forbidden to ask for alms and depended entirely on the spontaneous charity of the faithful. Such was Cajetan’s zeal in seeking the salvation of souls that he came to be called “the hunter of souls.” He died at Naples on August 7, 1547.