Reticius of Autun

Saint Reticius of Autun (Rheticus) was the first bishop of Autun known to history, in Gaul, from about 310 to 334. He was a Gallo-⁠Roman and an ecclesiastical writer. On behalf of the Emperor Constantine the Great he traveled in 313 to the synod of Rome and in 314 to that of Arles, to bring about a resolution of the dispute with the Donatists.

Gregory of Tours praised him in his writings, and Saint Jerome mentions him in his book On Illustrious Men, saying that he had a great reputation in Gaul in the reign of Constantine and that he had read his commentary on the Song of Songs. He was succeeded by Saint Cassian of Autun. He is commemorated on 20 July as a saint of the undivided Church, by the New Calendar.