1) Welsh mythology 
Matholwch, King of Ireland, is a character in the Second Branch of the Mabinogi, the tale of Branwen ferch Llŷr. The story opens with Bran, King of Britain, sitting on a rock by the sea at Harlech and seeing the vessels of Matholwch approaching. Matholwch has come to ask for the hand of Bran`s sister Branwen in marriage by screaming the traditio....