the Valais, the bishop of Sion, allied with Amadeus VI, Count of Savoy, was in conflict over the Walser-settled upper Valais during the 1340s. Amadeus pacified the region in 1352, but there was renewed unrest in 1353. In 1355, the towns of the upper Valais formed a defensive pact and negotiated a compromise peace treaty in 1361. This lasted until a renewed uprising in response to the 1383 accession of Amadeus VII, Count of Savoy. Amadeus invaded the Valais in 1387, but after his death in a hunting accident, his mother, Bonne de Bourbon, made peace with the Seven Tithings of the upper Valais, restoring the status quo ante of 1301. From this time, the upper Valais was mostly independent de facto, preparing the Republican structure that would emerge in the early modern period. In the Grisons, similar structures of local self-government arose at the same time, with the League of God's House founded in 1367, followed by the Grey League in 1395, both in response to the expansion of the House of Habsburg. See also Charles Guillaume Loys de Bochat Prehistoric pile dwellings around Zürichsee Notes and references Bibliography Im Hof, U.: Geschichte der Schweiz, Kohlhammer Verlag, 1974/2001. Schwabe & Co.: Geschichte der Schweiz und der Schweizer, External links Overview of the History of Switzerland Early history de:Schweiz im Mittelalter de:Schweiz in römischer Zeit fr:Suisse gallo-romaine