They assumed in this document authority over clericals, subjecting them to their worldly legislation. Furthermore, the Pfaffenbrief forbade feuds and the parties pledged to guarantee the peace on the road from Zürich to the St. Gotthard pass. Another important treaty was the Sempacherbrief in 1393. Not only was this the first document signed by all eight of the Acht Orte (plus the associated Solothurn), but it also defined that none of them was to unilaterally start a war without the consent of all the others. Beginning in 1401, the confederates supported the insurrection of Appenzell against the abbey of St. Gallen and Frederick IV of Austria, duke in Tyrol and Vorderösterreich. Appenzell became a protectorate of the Acht Orte in 1411, who concluded a 50-year peace with Frederick IV in 1412. Emperor Sigismund banned Frederick IV in 1415, who had sided with Antipope John XXIII at the Council of Constance, and encouraged others to take over the duke's possessions, amongst which was the Aargau. After being granted far-reaching privileges by the emperor (all eight cantons became reichsfrei) and a decree that placed the ban over the peace treaty of 1412, the Eidgenossen conquered the Aargau. A large part became Bernese, while the County of Baden was subsequently administered by the confederation as a common property until 1798. Only the Fricktal remained Habsburgian. In the Valais, the conflict between the Bishop of Sion and the Duchy of Savoy, which had led to a separation in 1301 (the bishop controlling the upper Valais and the Savoyards the lower part), broke out again. Twice the Savoyards temporarily occupied the whole Valais, but both times they were ultimately defeated. Both peace treaties from 1361 and 1391 restored the status quo of 1301. As a result of these struggles, the villages in the upper Valais organized themselves in the Sieben Zenden ("seven tenths") around 1355, emerging after these wars as largely independent small states, much like the cantons of the Eidgenossenschaft. In the Grisons, called Churwalchen then, the bishop of Chur and numerous local noble families competed for the control of the region with its many alpine passes. Throughout the 14th century, three leagues of free communities appeared. The Gotteshausbund ("League of the House of God"), covering the area around Chur and the Engadin, was founded when in 1367 the bishop, Jean de Vienne, planned to hand over the administration of his diocese to the