Каэтан
Conrad was born in Ulm in 1476. He entered the Dominican Order in 1492, and professed the following year. During his formative years he reports that he studied Capreolus. He entered the University of Heidelberg in 1500, and in 1507 became a master of theology, and commenced lectures on Thomas Aquinas. It was here that he wrote his line-by-line commentary on the "Prima Secundae" of Thomas's "Summa Theologica". On July 1, 1511, he took the position of master of theology at Cologne. In 1512, at the request of the factulies of both Heidelberg and Cologne, and with the permission of Thomas Cajetan—then Master General of the Order--, this commentary was published at Cologne under the title of "Expositio Comentaria . . . in Primam Secundae etc.".