Geraint son of Erbin through a variety of subsequent sources. Later genealogies associate him with southwestern Britain and South Wales in the late 6th century. The early poem "Y Gododdin" mentions a "Geraint before the South", conceivably a reference to Geraint mab Erbin. However, Geraint achieved his greatest fame as the hero of the prose romance "Geraint and Enid", a fictional tale that follows the narrative of Chrétien de Troyes' French work "Erec and Enide". "Geraint son of Erbin" makes heavy use of repetition in celebrating Geraint's deeds at Llongborth, which may be identified with Langport, Somerset, or Portsmouth, Hampshire though "llongborth" may refer
Goreu fab Custennin It is Goreu who ultimately slays Ysbaddaden, dragging him to the mound by his hair and there decapitating him. He then placed the head on a stake on the citadel and claims his fort and territory as his own, thus avenging the deaths of his brothers. He later appears in the Arthurian romance "Geraint fab Erbin" in which he is named as one of the four squires of Arthur's court and rides alongside the hero Geraint on his journey to Cornwall. In "Breuddwyd Rhonabwy", he appears briefly as one of Arthur's twenty four chief councillors. The "Welsh Triads" refer to