It was Antoine Bigou, chaplain of the noble family of Blanchefort, having forged them, having had the famous parchments first hand, as well as the documents of the Marquess.
The Marquess of Blanchefort, Marie de Négri d'Ables, wife of François d'Hautpoul, in 1732, was made the depositary of an important, perhaps historical, family secret and received in custody some documents, central in relation to this secret; these documents, together with the his wills, were handed over by François-Pierre d'Hautpoul to a notary in 1644, and it seems that after his death these documents passed from notary to notary until the Marquess of Blanchefort. The husband of the Marquess would have tried several times to recover them or to know their contents, but without success; the Marquise succeeded in excluding her husband from the secret.
It was at this very moment that the Marquess prepared her will, handing these documents to Antoine Bigou.
Marie de Négri d'Ables died on January 17, 1781, and from that moment on, Antoine Bigou maintained her commitment in the utmost scruple, mastery and diligence.
The Abbot Bigou thus forged the stele (on the left) and the tombstone (on the right) for the Marquess de Blanchefort,
together with having produced the famous parchments, containing the precious secrets confided to him by the Marquess on her deathbed.
One of the most significant keys to interpretation can be obtained by observing the tombstone stele, which according to the reproduction received today, showed several errors of writing apparently deliberate, because in the whole, it outlines a sure coherence; errors found through some letters that are evidently smaller, that is: e, E, E, P, and a letter "M" that is isolated from all the others; the date of death instead reports an anomalous "O", which obviously has no correspondence with the Roman numbers, the "R" in "ARLES", instead of the correct "B" of "ABLES", is a further mistake so grave that it appears to be mischievous, because the Marquess was precisely an "Ables" while on the first line the "T" replaces the most appropriate "I". Properly rearranged, the eight extrapolated letters form the two words "MORT" and "EPEE", which stands for "sword of death", "death and sword" or "death by sword", clamorous assonance with the story of the death of San Dagoberto II, who was assassinated just by the sword, during an attack in a wood near Stenay.
The composition of letters "MORTEPEE", used through the Vigenère system, as a decryption key to be applied to the so-caled "Big Parchemin", will give access to a sentence derived from 128 letters, which we will shortly illustrate in this study, which in turn, it will give access to links that connects to precise indications that refer to particular works of art.
The inscription on the stele is composed of 119 characters, and, thus completes with its errors, together with the above-mentioned sentence of 128 characters, derived from the "Big Parchemin", is part of a further perfect code of 247 letters, which can be deciphered writing on two pieces of paper, or on the same sheet, but separately, the two texts, at this point it will be sufficient to delete all the corresponding letters between the two texts and the result, generated by the letters advanced by the larger text, will be exactly the composition "PSPRAECUM", which corresponds to an inscription that we find on the slab.
In addition to this, with no possibility of approximation, we can find the presence of hidden geometric elements of considerable precision on the stele, which can be obtained by connecting the single "wrong" letters to the Cross of Jesus with a line, resulting in an isosceles triangle and a perfect pentacle, which proportions respect the golden ratio without fail, giving us also a mathematical and geometrical test of the author's will and skills.
It should be pointed out that is contemplated the hypothesis that the original stele was devoid of the linguistic anomalies that make up the code under examination and that the one arrived at our analysis was forged by Bérenger Saunière (instead of Bigou) , which would then include the codified elements.
At the same time, on the Marquise tombstone we find a certain combination of Greek letters, which, transposed into Latin, gives us as result a rather decisive, as etonating, combination.
The famous motto that we find in the "Bergers d'Arcadie" by Nicolas Poussin, which we will deal with later.
Returning instead to the scrolls made by Bigou, they were hidden in the church of Rennes le Château with other documents, where they remained until they were found by Bérenger Saunière.
This secret would be at the origin of the "affaire" of Rennes-Le-Château.
The Abbot Bigou then transmitted the secret to another priest, Abbot Cauneille and the latter communicates it to two other priests, Father Émile François Cayron, and the parish priest of Rennes les Bains, Jean Vie, who was the predecessor of Boudet; it is essential to know that Emile François Cayron was the mentor of the young Henri Boudet who became the curate of Rennes les Bains and this passage is fundamental because it highlights the connection between Antoine Bigou and Henri boudet, author of "La Vraie langue celtique et le Cromleck de Rennes-les-Bains ", a literary work famous for being suspected of actually being a code that could lead directly to the true tomb of Jesus in Languedoc.