Vincent of Lérins

Vincent of Lérins (Latin: Vincentius Lerinensis; died c. 445) was a Gallic monk and author of early Christian writings. One example was the Commonitorium, c. 434, which offers guidance in the orthodox teaching of Christianity. Suspected of semi-Pelagianism, he opposed the Augustinian model of grace and was probably the recipient of Prosper of Aquitaine's Responsiones ad Capitula Objectionum Vincentianarum. His feast day is celebrated on 24 May.

Notable works: Commonitory

Source: Wikipedia — https://en.wikipedia.org/wiki/Vincent_of_L%C3%A9rins