Sion, Switzerland Sion, Switzerland Sion (; ; ; ) is a Swiss town, a municipality, and the capital of the canton of Valais and of the district of Sion. it had a population of (known as "Sédunois(e)"). On 17 January 1968, the former municipality of Bramois merged into the municipality of Sion. On 1 January 2013, the former municipality of Salins merged into the municipality of Sion, and on 1 January 2017, Les Agettes did the same. Landmarks in Sion include the Basilique de Valère and Château de Tourbillon. Sion has an airfield for civilian and military use, where it serves as
Lauda Sion Lauda Sion "Lauda Sion Salvatorem" is a sequence prescribed for the Roman Catholic Mass for the feast of Corpus Christi. It was written by St. Thomas Aquinas around 1264, at the request of Pope Urban IV for the new Mass of this feast, along with "Pange lingua", "Sacris solemniis", "Adoro te devote", and "Verbum supernum prodiens", which are used in the Divine Office. The Gregorian melody of the "Lauda Sion" is borrowed from the eleventh-century sequence "Laetabundi iubilemus" attributed to Adam of Saint Victor. The hymn tells of the institution of the Eucharist and clearly expresses the belief of the