The seven tithings (Zenden, dizains, Latin: decumae) of the Central and Upper Valais, listed orographically[clarification needed], were Goms, Brig, Visp, Raron, Leuk, Siders, and Sion.

The tithings (Zehnden) of the Upper Valais emerged as medieval communes, which were granted certain privileges by Charles IV in 1353.

Throughout the 16th century, the tithings, now calling themselves Republica Vallesi, acted as a sovereign power without regard to the prince-bishop who was still nominally the feudal ruler of Valais.

The constitutional establishment of the Zendenherrschaft (sovereignty of the tithings) dates to 1571, but the conflict between the prince-bishops and the communes simmered on into the 17th century.

From this time until the French invasion of 1798, the bishops of Sion retained their title of prince-bishops of the Holy Roman Empire only in name, being constitutionally bound to submit to the decisions of the Diet.