eventual achievement of the Grail by Galahad. The story was rewritten in the Post-Vulgate Cycle and other derivative works.

The other branch tells the Grail's earlier history since the time of Jesus and Joseph of Arimathea:

* Robert de Boron's Joseph d'Arimathie and Merlin (the Little Grail Cycle), establishing the Grail as the vessel of the Last Supper.
* The Vulgate