fc sion were founded in 1909 by robert gilliard. in 1914 they played in a league for the first time. from 1932 they played in the 4th level of swiss football where they stayed mostly of the next 20 years.1962 they where promoted to nationalliga a. 1965 they won the first swiss cup, 1974 the second. they won also in 1980, 1982 and 1986. 1992 they won the first swiss championship. from 1995 on they won the swiss cup three times in a row. 1997 they also won the double.