Since the early Middle Ages, the Bishopric of Chur and the Counts of Tyrol had been disputing and quarrelling over the judicial rights in the lower Engadin, the Val Müstair, and the Vinschgau. When Tyrol came under the rule of the Habsburgs in 1363, Habsburg reeves had tried repeatedly to curtail the rights of the bishopric and to assimilate the valleys to their territories. The people of these valleys opposed these attempts and between 1367 and 1415 united in the League of God's House, one of the Three Leagues of the Grisons.