The document titled "Secret Files of Henri Lobineau" is believed to have been created by Philippe Toscan du Plantier. It is a 27-page paper that was placed in the Bibliothèque nationale de France on April 27, 1967. The document claims to describe part of the history of the Priory of Sion. However, most people believe it was made up by Pierre Plantard and Philippe de Chérisey. Thirteen of the 27 pages were copied from another document called "Genealogy of the Merovingian Kings," which was written in 1964 and also attributed to "Henri Lobineau." This other document is thought to have been written by Plantard and includes family tree diagrams that appear to show Plantard as a descendant of the Merovingian king Dagobert II.

Contents

Dossiers Secrets d'Henri Lobineau includes the following materials (along with 13 pages from Généalogie des Rois Mérovingiens):

• An introduction written by Edmond Albe, which includes a dedication signed by Philippe Toscan du Plantier. The dedication is addressed to "Monsignor the Comté de Rhedae, Duc de Razès, the legitimate descendant of Clovis I, King of France, Serene ardent shoot of the 'King and Saint' Dagobert II." Albe mentions Henri Boudet, who supposedly shared a secret with Léopold Vannier, Superior of the Brotherhood of Notre-Dame de Marceille, By Limoux, Aude. Albe also states that Émile Hoffet's library was later owned by the International League of Antiquarian Booksellers before being added to the secret archives of the Knights of Malta.
• Maps of France and a Merovingian family tree from a scholarly book not named in the document.
• Newspaper articles about the freedom of Occitania.
• A fake letter supposedly written by Noël Corbu. The letter includes part of an envelope marked "Couiza 1962" and mentions Émile Hoffet. It is addressed to Herbert Regis, who, according to Edmond Albe, was supposed to meet Fakhar ul Islam, who carried a secret leather briefcase belonging to Leo Schidlof ("Henri Lobineau"). However, Herbert Regis died before reaching Fakhar ul Islam.
• A fake letter sent to Marius Fatin by the "International League of Antiquarian Booksellers," dated 2 July 1966.
• A list of the Grand Masters of the Priory of Sion.
• A page copied from several paragraphs in Paul Le Cour's 1937 book, The Age of Aquarius.
• An obituary for the priest M. L'abbé Geraud de Cayron.

Holy Blood, Holy Grail

Henry Lincoln used the documents as evidence for a series of BBC Two documentaries in the 1970s. He did not know that the documents were said to be fake. Lincoln, along with co-authors Richard Leigh and Michael Baigent, later used the same documents for the 1982 book Holy Blood, Holy Grail. Parts of this book were later used by Dan Brown as sources for his popular novel The Da Vinci Code.