An Italian theologian and diplomatist, born 1500 at Milan of the distinguished family of that name; died 1558. At the age of twenty he obtained the doctorate in law, at the University of Padua, and revealed such talents for diplomacy that Paul III named him successively Governor of the City of Rome, Vice-Chamberlain Apostolic, Bishop of the Holy Sepulchre, and of Saluzzo. He also sent him to preside in his name at the Council of Trent, then transferred to Bologna. St. Ignatius Loyola found in him a powerful protector, in the early years of the Society of Jesus, and only his death prevented his installation in the archiepiscopal chair of Milan to which Paul IV had nominated him. His theological works are "De fide et sacramentis" (Cracow, 1545; Ingolstadt, 1546; Turin, 1549); "Oratio de nova christiani orbis pace habita" (Rome, 1544).
PALLAVICINI, Histoire du concile de Trente (edit. MIGNE) III, 1122.