Silvestro Mazzolini (Silvester Prierias, 1456–1527) was an Italian Dominican theologian and inquisitor from Prierio in Piedmont. He taught Thomist philosophy and theology at Bologna and Padua, was named Master of the Sacred Palace by Leo X in 1515, and served as the papal censor of theological writings in Rome. He is remembered both as the first Catholic theologian to write publicly against Martin Luther — his Dialogus de potestate papae (1518) opened the controversy — and as the author of the Summa summarum quae Silvestrina nuncupatur, an alphabetical confessor's manual that became one of the most widely consulted moral-theological works of the sixteenth century.
