Pierre Plantard

Pierre Plantard de Saint-Clair (born Pierre Athanase Marie Plantard, 18 March 1920 – 3 February 2000) was a French technical artist, best known for being the principal fabricator of the Priory of Sion hoax, by which he claimed from the 1960s onwards that he was a male-line Merovingian descendant of Dagobert II and the "Great Monarch" prophesied by Nostradamus. Today in France, he is commonly regarded as a con artist. Provided by Wikipedia