Treguier

The magnificent cathedral at Tréguier is now dedicated to St Yves, Brittany's male patron saint, but the site was originally associated with Tugdual, one of the seven Founding Saints. He is said to have come from Wales (or possibly Devon) in the early 6th century. Like so many of the holy men who immigrated from Britain at this time, Tugdual had powerful relations. His mother was the sister of Riwal, king of Domnonée.