Page "Holy Grail" Paragraph 29

Most scholars today accept that both Christian and Celtic traditions contributed to the legend's development, though many of the early Celtic-based arguments are largely discredited ( Loomis himself came to reject much of Weston and Nutt's work ).

The general view is that the central theme of the Grail is Christian, even when not explicitly religious, but that much of the setting and imagery of the early romances is drawn from Celtic material.