Tyrannius Rufinus
St. Paul the Simple of Egypt (d. ca. 339) was a hermit and disciple of St. Anthony the Great. St. John, the Abbot of Sinai wrote "Paul the Simple was a clear example for us, for he was the rule and type of blessed simplicity." Though contemporaries, he is not to be confused with St. Paul of Thebes, regarded as the First Hermit. The account of his life is found in Palladius of Helenopolis "De Vitis Patrum" 8,28 and Tyrannius Rufinus "Historia Eremitica" 31.