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
Ion Theodorescu-Sion to "Tinerimea" and "Arta Română" salons, Theodorescu-Sion exhibited his work at the Atheneum, the "Universul" newspaper art show, Dalles Gallery and various other venues. With Ressu and Arthur Verona, Sion was also co-founder, in 1921, of Romania's first artists' trade union ("Sindicatul Artelor Frumoase"), which militated for basic social security but also had a political and (according to art expert Vasile Radu) "utopian" agenda. Briefly, their plans earned official support during the interval when Victor Eftimiu, a Symbolist playwright and rich art collector, was Minister of Culture and the Arts. In the early interwar years, Sion was also one of