St. Rumon, also known as Ruan, Ronan, and Ruadan, was probably a brother of Bishop St. Tudwal of Trequier, but nothing else is known of him beyond that he was probably an Irish missionary and many churches in Devon and Cornwall in England were named after him. Some authorities believed he is the same as the St. Ronan (June 1) venerated in Brittany and believed consecrated bishop by St. Patrick, but others believe that he and St. Kea were British monks who founded a monastery at Street Somerset.