Diogenes

Saint Diogenes of Arras was, of Greek origin, sent to Gaul by Pope Siricius at the end of the fourth century and consecrated bishop by Nicasius of Reims; according to tradition he was martyred by the Vandals in the fifth century.

His commemoration is kept on 22 March. In the church of Saint-⁠Nicolas-⁠en-⁠Cité at Arras, a stained-⁠glass window shows the scene "Saint Diogenes evangelises our ancestors and dedicates a church in this place to the Mother of God, 390". He is a saint of the undivided Church, honoured in the Catholic Church, without synodal canonization.