Castle of Tourbillon located on the South-West of Switzerland , in the city of Sion. The castle was erected by Bonifatzy Shallan in the XIII century. Destroyed in the XV century and restored by the Bishop Giyom the VIth, who added the chapel. The castle was badly damaged bu fire in 1788. Majestic ruins of the Fortress enclosed with toothed wall are still seen on one of the rocky hills above Sion