Pope Clement IV
In February 1265 newly elected Pope Clement IV summoned Aquinas to Rome as papal theologian. That same year in accord with the injunction of the Chapter of the Roman province at Anagni, Aquinas was assigned as regent master at the "studium" at Santa Sabina: We assign Friar Thomas of Aquino to Rome, for the remission of his sins, there to take over the direction of studies.