Whatever the truth, Corbu applied to the Vatican for a grant and they took the unusual step of sending a Papal Ambassador direct to Carcassone to deal with the matter. This was none other than Cardinal Roncalli, who later became Pope John XXIII. The grant was initially refused, but the Vatican later changed their mind, adding to the speculation.
Marie is said to have promised Corbu that before she died she would tell him a secret that would make him a rich and powerful man. However, on January 29, 1953, at the age of 85, she suffered a stroke that rendered her incapable of speech. To everyone's frustration, she died shortly afterwards, taking her secret with her.
As for Corbu, he sold the Villa in 1962, and bought a castle that had formally belonged to the Cathars. On May 28, 1968, a lorry flattened his car. According to witnesses, the lorry had been parked at the side of the road. As Corbu's car drove past, it was crushed with him still inside.
Henry Lincoln, co-author of the Holy Blood and the Holy Grail, first became interested in this story in 1969. In February 1972, the first of three documentaries was shown, entitled The Lost Treasure of Jerusalem? Lincoln subsequently received a letter from a retired Anglican Priest who claimed that what Sauniere had unearthed was proof that Jesus had not died on the cross. The Priest claimed to have received this information from fellow Anglican cleric, Canon Alfred Leslie Lilley, who during his youth, had worked in Paris with Emile Hoffet.
The authors of the Holy Blood and the Holy Grail have twice had the relevant archives in the Vatican checked for information on Sauniere. On both occasions their researchers reported that nothing could be found. There were no records of his even having existed. This seems somewhat strange, and suggests that all information regarding Sauniere has for some reason been deliberately removed.
So two question remain, what did Sauniere discover? and where did his wealth come from?