Father of Percivale/Peredur in Peredur son of Efrawg, one of the three Welsh romances associated with the Mabinogion.

His name has been etymologically associated with York, a title rather than a name, giving an indication that this was the place he ruled. It has been speculated that Peredur may have originally been based on a brythonic prince, who ruled in the northern parts of England.