The early thirteenth-century French prose Lancelot-Grail Cycle (or Vulgate Cycle) brings together the stories of Arthur with those of the Grail, a conjunction of materials that continues to fascinate the Western imagination today. Representing what is probably the earliest large-scale use of prose for fiction in the West, it also exemplifies the taste for big cyclic compositions that shaped much of European narrative fiction for three centuries. A Companion to the Lancelot-Grail Cycle is the first comprehensive volume devoted exclusively to the Lancelot-Grail Cycle and its medieval legacy.