For many decades Rennes-le-Château conspiracy theorists have tried to pin a treasure on the Abbé Henri Boudet.

Actually, Abbé Boudet – who was an amateur archaeologist – never referred to any “treasure” or “mystery”.

Abbé Boudet was simply interested in the idea of a Universal Language that was quite common centuries ago. There is nothing unique about his book La Vraie langue celtique et le cromleck de Rennes-les-Bains in this respect.

If Henri Boudet’s gravestone contains “enigmatic content” – then so do many other gravestones all over the world.

Umberto Eco, La Recherche de La Langue Parfaite (préface de Jacques Le Goff, Paris: Seuil, 1994)

Umberto Eco, The Search for the Perfect Language (Wiley-Blackwell, 1997)