Sion, Switzerland Sion, Switzerland Sion (; ; ; ) is a Swiss town, a municipality, and the capital of the canton of Valais and of the district of Sion. it had a population of (known as "Sédunois(e)"). On 17 January 1968, the former municipality of Bramois merged into the municipality of Sion. On 1 January 2013, the former municipality of Salins merged into the municipality of Sion, and on 1 January 2017, Les Agettes did the same. Landmarks in Sion include the Basilique de Valère and Château de Tourbillon. Sion has an airfield for civilian and military use, where it serves as
Priory of Sion Bérenger Saunière: a mummified corpse, which Hammott claimed to believe is Mary Magdalene, in an underground tomb purportedly connected to both the Knights Templar and the Priory of Sion. In the film, Burgess interviews several people with alleged connections to the Priory of Sion, including a Gino Sandri and Nicolas Haywood. A book by one of the documentary's researchers, Rob Howells, entitled "Inside the Priory of Sion: Revelations from the World's Most Secret Society – Guardians of the Bloodline of Jesus" presented the version of the Priory of Sion as given in the 2008 documentary, which contained several erroneous assertions,