Famous Frauds by LuskT

Question 2

Pierre Plantard was the chief perpetrator and supposed Grand Master of what invented organization that claimed, among other things, that Jesus may not have died on the Cross and sired a family that eventually became the Merovingian dynasty in France? It features prominently in a 1982 "non-fiction" work that later inspired The Da Vinci Code.

Priory of Sion (Prieuré de Sion)