Gorlois

Igraine and Gorlois in Władysław T. Benda's illustration for Uther and Igraine by Warwick Deeping (1903). In much of modern Arthurian tradition (a prominent example is 1983's The Mists of Avalon), he is portrayed as a jealous and abusive husband

In Arthurian legend, Gorlois (Welsh: Gwrlais) of Tintagel was the Duke of Cornwall. He was the first husband of King Arthur's mother Igraine and the father of her daughters, Arthur's half-sisters. Her second husband was Uther Pendragon, the High King of Britain and Arthur's father, who marries her after killing him.