From the ancient British tales of King Arthur and his knights through the medieval Central European sagas of Parzival, right up to modern-day blockbuster novels and films, the Grail has long maintained its enigmatic presence in western culture. It is said to be many things: a lost and priceless treasure, the chalice cup of the Last Supper, the cup that caught Jesus Christ's blood from the cross on Golgotha, or even a secret royal bloodline