for Arthur, who then moved his court to Paris. Finally returning to Brittany, he was aided by Tristram of Lyonesse in suppressing a civil war. Hywel was eventually turned into "Sir Howel" of the Round Table. He appears thus in medieval Welsh sources like The Dream of Rhonabwy, Geraint and Enid, and Peredur son of Efrawg. A conflation of the two appears prominently in Geoffrey of Monmouth's pseudohistorical Historia Regum Britanniae, where Hywel comes from Brittany to help suppress the revolts which arise after Arthur's coronation. A respected ruler and capable general, his relationship with Arthur is uncertain: he first appears as the son of Budic II of Brittany who married a sister of Ambrosius Aurelianus and Uther Pendragon, making him Arthur's first cousin, but appears later as the son of Budic and Arthur's sister Anna, making him Arthur's nephew. (This confusion reappears in Wace and Layamon but most later sources make him Arthur's "cousin".) In Geoffrey, Hywel's niece is raped and killed by the Giant of Mont Saint-Michel; Arthur sets off to slay him with Sir Kay and Bedivere. Arthur returns to fight his traitorous nephew Mordred and leaves Hywel in charge of "Gaul". Hywel later joins the Round Table and leaves his nephew Joseph in charge of his kingdom. Hywel was later attached to the Tristan and Iseult legend by such poets as Béroul and Thomas of Britain. In these stories, Hywel is duke of Brittany and the father of Tristan's unloved wife, Iseult. Hywel takes Tristan in when the young knight has been banished from the kingdom of king Mark of Cornwall, and Tristan later helps him in battle and becomes fast friends with his son Kahedin and his daughter Iseult. Tristan convinces himself to marry this second Iseult, mostly because she shares the name of his first love, Iseult of Ireland. In early versions of the story, Tristan remains in Hywel's land until he dies of poison minutes before Iseult of Ireland, a great healer, arrives to cure him. The Prose Tristan has the hero returning to Britain and to his first love, never to see his wife again. This version was followed by the Post-Vulgate Cycle and by Thomas Malory's Death of Arthur. Legacy Llanhowell in Llanrhian, Pembrokeshire, Wales, is named in his honour. Llanllowell in Monmouthshire originally was as well, although it is now considered dedicated to Saint Llywel. The present parish church at