Not much is known about this saint. He may have been the last king of Britain (Wales) in Gwynedd. He was known as a quiet and peaceable KIng who shunned battles. He may have died of the plague. He is buried in the church of Llangedwaladr in south west Anglesey. There was a royal monastery nearby at Aberffraw where the Royals of Gwynedd were buried.
He is the patron of Wales Orthodox Mission based at Bleinau Ffestiniog
