Санта-Пуденциана
As cardinal, he participated in the Council of Trent 1562-63. In 1564, he signed the acts of the Council of Trent in the name of Pope Pius IV. From August 22, 1565 until January 20, 1566, he was papal legate in Camerino. He opted for the titular church of Santa Pudenziana on November 17, 1565. He participated in the papal conclave of 1565-66 that elected Pope Pius V.