The Holy Grail
The Holy Grail is, in medieval literature, the sacred cup used by Jesus Christ at the Last Supper and later piously sought by the knights of the legendary King Arthur. Later the Holy Grail stands for every way to reach world peace.
According to tradition, the Grail was preserved by Joseph of Arimathea, who collected in it the blood from the body of the crucified Christ. The vessel was then conveyed to Britain, where it was transmitted from generation to generation of Joseph's descendants. The Grail possessed many miraculous properties, such as the power of furnishing food for those without sin and of blinding the impure of heart or striking dumb the irreverent who came into its presence.
Holy Grail, or 'San Greal' is also explained as 'Sang Real', meaning: Royal Blood. This theory is mostly supported in gnostics, who claim that Mary of Magdala was Jesus' wife (or lover) and that she was carrying his blood (his child) with her when she moved to France after Jesus died. Even today, there are those who claim to be descendants of Jesus of Nazareth in Rennes-de-Chateau.