Priory of Sion

The Prieuré de Sion (French: IPA/API:[pʁijœʁe də sjɔ̃]), translated as Priory of Sion, is the name given to a fringe fraternal organisation, founded and dissolved in France in 1956 by Pierre Plantard as part of a hoax. In the 1960s, Plantard created a fictitious history for that organization, describing it as a secret society founded by Godfrey of Bouillon on Mount Zion in the Kingdom of Jerusalem in 1099, conflating it with a genuine historical monastic order, the Abbey of Our Lady of Mount Zion. In Plantard's version, the priory was devoted to installing a secret bloodline of the Merovingian dynasty on the thrones of France and the rest of Europe. This myth was expanded upon and popularised by the 1982 pseudohistorical book The Holy Blood and the Holy Grail and later claimed as factual in the preface of the 2003 novel The Da Vinci Code.

After becoming a cause célèbre from the late 1960s to the 1980s, the mythical Priory of Sion was exposed as a ludibrium created by Plantard as a framework for his claim of being the Great Monarch prophesied by Nostradamus. Evidence presented in support of its historical existence and activities before 1956 was discovered to have been forged and then planted in various locations around France by Plantard and his accomplices. Nevertheless, many conspiracy theorists still persist in believing that the Priory of Sion is an age-old cabal that conceals a subversive secret.

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