The 1712 Swiss Civil War that ended Catholic hegemony and redefined religious equality
Known as the Toggenburg War, this 1712 conflict pitted Protestant cantons against Catholic powers. It began as a local dispute over religious freedom in the Abbey of Saint Gall’s territories but escalated into a decisive struggle for political control, permanently altering the balance of power within the Old Swiss Confederacy.
The conflict originated in the County of Toggenburg, where Protestant subjects clashed with the prince-abbot of Saint Gall, Leodegar Bürgisser. As the abbot pursued Counter-Reformation policies, including the construction of new Catholic churches and the suppression of Reformed clergy, tensions mounted. By 1707, the Toggenburgers, backed by the Protestant cantons of Zürich and Bern, adopted a new constitution to secure autonomy, effectively challenging the abbot’s authority.
The situation spiraled into war in April 1712, when Bern and Zürich mobilized against the Catholic inner cantons. The war unfolded in two distinct phases. After early Protestant successes in the Aargau region, a temporary peace treaty was rejected by Catholic hardliners. This led to the decisive Second Battle of Villmergen on 25 July 1712, where 8,000 Bernese troops defeated 12,000 Catholic forces, resulting in 2,000 Catholic deaths and the collapse of Catholic resistance.
The subsequent Peace of Aarau, or Fourth Landfrieden, fundamentally reshaped the Swiss political landscape. It ended the long-standing political hegemony of the Catholic cantons within the shared territories of the Confederacy. Crucially, it established legal parity between Protestantism and Catholicism, replacing mere tolerance with formal equality. While the Abbey of Saint Gall was eventually restored, the war ensured that the Protestant cantons held significant influence over the governance of the shared lands, marking a permanent shift in the Confederacy's internal power structure.
Source: Toggenburg War
