Merfyn Frych ('Merfyn the Freckled'; Old Welsh Mermin), also known as Merfyn ap Gwriad ('Merfyn son of Gwriad') and Merfyn Camwri ('Merfyn the Oppressor'), was King of Gwynedd from around 825 to 844, the first of its kings known not to have descended from the male line of King Cunedda. The Annales Cambriae say Merfyn died around 844, the same year in which a battle occurred at Cetyll, but it is unclear whether those were two unrelated events or he fell in battle.