The Bishop of Sion used a vertically divided red-and-white war flag from ca. 1220. The coat of arms of Valais originates in 1613, as the subject territories of the bishop were united into a republic, the stars representing the individual Dixains. There were six stars in 1613, augmented to seven in 1628. In the 1803 Act of Mediation, Napoleon separated the Valais from the restored Swiss Confederacy, and in 1810 he annexed it into the Department of Simplon. At this point the number of Dixains and the number of stars in the flag was increased to twelve. The thirteenth star was added as the Valais joined the restored Swiss Confederacy in 1815, with the creation of Conthey as the thirteenth Dixain.
Most mass-produced flags are commonly 150x90cm / 5x3' or 90x60cm / 3x2', which will often vary from the official size ratio. We now offer a custom-manufactured official size option for our many of our flags.