Prosper of Aquitaine

Prosper of Aquitaine, the zealous champion of Augustine and Augustinian doctrine against the Semi-Pelagians, was born in Aquitaine about the end of the 4th century, was a prominent theologian in southern Gaul in 428–434, and in the latter year settled in Rome. The date of his death is not known. Besides letters, Responsiones, and pamphlets on the doctrines of grace and free-will, he wrote a chronicle, coming down to 455 A.D., a long hexameter poem against the Pelagians, and a Liber Sententiarum compiled from Augustine's works. There is an edition of Prosper's works by Le Bruin and Mangeant (Paris, 1711). He is sometimes called St Prosper, the 25th June being his day in the Catholic calendar.