The most comprehensive account of the story of Arthur, the Round Table and the Grail is to be found in the work known as Lancelot-Grail or the Vulgate Cycle. It tells the story of the Arthurian world from the events of the Crucifixion, where the Grail originated, to the death of Lancelot after the destruction of the Round Table. It draws in many different strands, from the pseudo-historical stories about Arthur to the romances of chivalric adventure and the spiritual quest for the Grail. It...
The 'Vulgate' and 'Post-Vulgate' cycles are the French equivalent of Malory's Morte Darthur, written in the thirteenth century. Malory drew on both of them as his source, and they are the cornerstone text of all Arthurian romance.