From Greek katharoi, "pure ones"; group that arose within the Catholic Church in the tenth century, living simply, speaking out against the medieval clergy's corruption, and promoting a Gnostic view of God and of the world. The Cathari believed in two deities, one evil and one good: the evil ("the Demiurge") was the creator of the physical world, worshiped by the Jewish people; the good had created the spiritual world and then Christ to provide a path of escape from the physical world. (Christ supposedly was a phantom, not God-incarnate.) Several pseudo-historical sources, including Holy Blood, Holy Grail, have insinuated that a nineteenth-century priest named Be´renger Saunie`re found evidence in his church at Rennes-Le-Chateau that the Cathari were the keepers of the Holy Grail; no objective evidence has ever been advanced to support this speculation. See also Albigensian Crusade; Cathar treasure; Gnosticism; Holy Blood, Holy Grail; Holy Grail; Saunie're, Be'renger.