Sulpitius Severus . Vincent of Lerins . John Cassian - Severus, Sulpicius, ca.ca. 420; Vincent of Lérins, Saint, d. ca. 450; Cassian, John, ca.ca. 435 (A select library of Nicene and post-Nicene fathers of the Christian church : second series / translated into English with prolegomena and explanatory notes, under the editorial supervision of Philip Schaff and Henry Wace, 1894)