The Holy Grail. The development of the Grail legend has been traced in detail by cultural historians: It is a legend which first came together in the form of written romances, deriving perhaps from some pre-Christian folklore hints, in the later 12th and early 13th centuries. The early Grail romances centered on Percival and were woven into the more general Arthurian fabric. Some of the Grail legend is interwoven with legends of the Holy Chalice.

The Holy Grail - Watch Free Documentary Online - Discovery Channel, Hans-Christian Huf, Jens-Peter Behrend (director), Jane Copland (narrator)