Geraint Romances associated with the "Mabinogion". Its story closely parallels the French writer Chrétien de Troyes's "Erec and Enide". Some scholars feel both works derived from a common lost source, but most believe the Welsh version derives directly or indirectly from Chrétien. In this case, the renowned figure of Geraint would have been added to the story to suit Welsh audiences unfamiliar with Chrétien's protagonist, Erec. "Geraint and Enid" was reworked by Alfred Tennyson into the poems "The Marriage of Geraint" and "Geraint and Enid", part of his "Idylls of the King". The Arthurian character in later works is often referred
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