Priory of Sion

The Priory of Sion (Prieuré de Sion) is a fictional secret society fabricated by French draftsman Pierre Plantard in 1956. Plantard created the organization and forged an extensive collection of supporting documents, which he planted in the Bibliothèque Nationale de France to create a false historical record suggesting the group was an ancient secret society founded in 1099.

According to Plantard's fabricated documents, the Priory was supposedly created to protect the descendants of the Merovingian dynasty and maintain the secret that Jesus Christ had married Mary Magdalene and fathered a royal bloodline that survived in medieval France. These claims were entirely fictitious, created by Plantard to support his own pretensions to noble heritage and historical importance.

The hoax gained international attention in 1982 with the publication of "The Holy Blood and the Holy Grail" by Michael Baigent, Richard Leigh, and Henry Lincoln, who accepted Plantard's fabricated documents as authentic historical evidence. The book presented the Priory as a real organization that had protected Christian secrets for nearly a millennium, with famous historical figures like Leonardo da Vinci and Isaac Newton allegedly serving as Grand Masters.

The fictional Priory reached its peak of cultural influence with Dan Brown's 2003 novel "The Da Vinci Code," which incorporated many elements from the earlier non-fiction book. However, by this time, French researchers had thoroughly exposed Plantard's deception, revealing the forged nature of the documents and the modern origins of the supposed ancient society.

Plantard himself admitted in court testimony during the 1990s that he had fabricated the documents and that the Priory of Sion was a modern creation rather than an ancient organization. The case demonstrates how skillfully fabricated documents and the human desire for secret knowledge can create persistent historical myths that continue to influence popular culture despite being thoroughly debunked.