Святая Кровь и Святой Грааль
In the pseudohistorical book "The Holy Blood and the Holy Grail" Yolande de Bar was alleged to have been the tenth Grand Master of the Priory of Sion, succeeding her father, King René. The evidence for this claim was derived from the Dossiers Secrets d'Henri Lobineau, forged documents created in 1967.