Sidonius (Irish saint)
Sidonus was born sometime in the seventh century AD, and was a monk at Jumièges Abbey in 664; he then spent several years travelling between monasteries. For ten years he served in Rome as a companion to Ouen, eventually being sent to lead a monastery near Rouen. This monastery, known in his honour as Saint-Saëns, survived until the ninth century. Sidonius founded several other monasteries in the area before retiring to live as a monk.