Idylls of the King and Enid", of the "Mabinogion". Geraint, tributary prince of Devon and one of Arthur's bravest knights, is married to Enid, the only daughter of Yniol. He loves his wife deeply and she responds with equal affection; her only wish is to please him. At this time, the first rumours about Lancelot and Guinevere begin to spread throughout the court, but as yet there is no proof that any romance really exists. Geraint believes the stories and begins to fear that Enid will follow the bad example of her friend, the queen. His worries begin to plague him and he finally
King Arthur de Boron, a fact that helped accelerate the decline of Arthur in continental romance. Similarly, Lancelot and his cuckolding of Arthur with Guinevere became one of the classic motifs of the Arthurian legend, although the Lancelot of the prose "Lancelot" () and later texts was a combination of Chrétien's character and that of Ulrich von Zatzikhoven's "Lanzelet". Chrétien's work even appears to feed back into Welsh Arthurian literature, with the result that the romance Arthur began to replace the heroic, active Arthur in Welsh literary tradition. Particularly significant in this development were the three Welsh Arthurian romances, which are closely