 His cult is ancient and widespread in the Marche and Umbria, with many churches and abbeys dedicated to him, but historical information on his life is limited to a few details and traditions.He is sometimes identified with Archbishop Flavian of Constantinople.One of Flavian's successors in the see of Ricina, Saint Claudius (4th century), fixed the date of Flavian's feast day and also built and dedicated a church to him.