Sion, Switzerland contrast, the rate of violations of immigration, visa and work permit laws was 0.9 per thousand residents, which is only 18.4% of the rate for the entire country. People associated with Sion include: Sion is twinned with: 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
Maurice Sion Maurice Sion Maurice Sion (17 October 1927, Skopje – 17 April 2018, Vancouver) was an American and Canadian mathematician, specializing in measure theory and game theory. He is known for Sion's minimax theorem. Sion received from New York University his B.A. in 1947 and his M.A. in 1948. He received from the University of California, Berkeley in 1951 his Ph.D. under the supervision of Anthony Morse with thesis "On the existence of functions having given partial derivatives on Whitney's curve". Sion was a member of the mathematics faculty at U.C. Berkeley until 1960, when he immigrated to Canada with his