Roman Catholic Diocese of Sion Roman Catholic Diocese of Sion The Diocese of Sion (, , ) is a Roman Catholic ecclesiastical territory in the canton of Valais, Switzerland. It is the oldest bishopric in the country and one of the oldest north of the Alps. The history of the Bishops of Sion, of the Abbey of St. Maurice of Valais as a whole are inextricably intertwined. The see was established at Octodurum, now called Martigny, the capital of the Roman province of Alpes Poeninae. The first authentically historical bishop was Saint Theodore/Theodolus (died in 391), who was present at the Council of Aquileia in
Sion College A. Sion College Sion College, in London, is an institution founded by Royal Charter in 1630 as a college, guild of parochial clergy and almshouse, under the 1623 will of Thomas White, vicar of St Dunstan's in the West. The clergy who benefit by the foundation are the incumbents of the City parishes, of parishes which adjoined the city bounds when the college was founded, and of parishes subsequently formed out of these. The original buildings in London Wall were on a site previously occupied by Elsing Spital, a hospital for the blind founded in 1329, and earlier still by