From 1458 until the French Revolutionary War in 1798, Sargans became a condominium of the Old Swiss Confederacy, administered jointly by the cantons of Uri, Schwyz, Unterwalden, Lucerne, Zürich, Glarus and Zug.
After the death of the last Toggenburgers the counts of Werdenberg-Sargans redeemed the pledge, to rule over the county anew, with Walenstadt and Quarten remaining as Vogtei (protectorates) of the Habsburgs.
Schwyz and Glarus conquered the county and forced the population to carry out, for the count von Werdenberg-Sargans, the Oath of Loyalty.
From 1712, after the second war of Villmergen, Bern became involved in the condominium, with the Lordship of Freudenberg (Imperial Abbey of Pfäfers) and Walenstadt joining the jointly administered territories.
The Lordship was legally closely interlaced with the remaining area of the today's municipality Wartau, but was subordinate to the jurisdiction of the County of Werdenberg.