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, Mumbai Sion, Mumbai Sion is a neighbourhood of Mumbai. The Marathi name for Sion is "Sheev" which means boundary or limit. In the 17th century the village formed the boundary between Mumbai and Salsette Island. The British named it marking the end of the city. The name remained even after Mumbai was joined to the Salsette and extended up to Mulund. However now Sion is not the end of the city. One of the local historical places in Sion is a hilltop garden commonly known as Sion Fort or Sheevon Killa in native language Marathi. In 1543, the Portuguese took possession