Gregory of Rimini was a prominent 14th-century Italian Augustinian friar, theologian, and philosopher. Born in Rimini around 1300, he became a significant figure in scholasticism by bridging the intellectual traditions of Paris and Oxford. Known by several nicknames, including Doctor Acutus, he served as the Prior General of the Augustinian Hermits. His theological work focused heavily on the doctrines of Saint Augustine, particularly regarding grace and predestination, which later influenced both Catholic and Reformation thought. He died in Vienna in 1358 and is recognized as a blessed in the Catholic tradition.