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St. Thomas Aquinas (born 1224/25, Roccasecca, near Aquino, Terra di Lavoro, Kingdom of Sicily [Italy]—died March 7, 1274, Fossanova, near Terracina, Latium, Papal States; canonized July 18, 1323; feast day January 28, formerly March 7) was an Italian Dominican theologian and the foremost medieval Scholastic. He developed his own conclusions from Aristotelian premises, notably in the metaphysics of personality, creation, and Providence. As a theologian, he was responsible in his two masterpieces, the Summa theologiae...