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
Guy Sion in the Norwegian big bands Primetime Orchestra and Ett Fett Storeband, and is the co-leader of The Diaspora House, a band playing Jewish music from around the world (Ashkenazi, Sephardic Mizrahi) in a Jazz setting. Guy Sion Guy Sion (born 1980 in Israel) is an Israeli jazz saxophonist, residing in Oslo, Norway. Sion moved to Oslo, Norway, in late 2010 and started working as a music teacher in the Oslo area. He performed at the 2011 Moldejazz with his Lennie Tristano tribute band Crosscurrent. In January 2012 Sion released his second album "Away" featuring Norwegian the guitarist Bjørn Vidar Solli