As a direct connection between Tyrol and Milan, the Grisons and in particular the Val Müstair became strategically important to the Habsburgs. The Umbrail Pass in the Val Müstair connects the Vinschgau valley (Val Venosta) in southern Tyrol with the Valtellina in northern Italy. Furthermore, the Habsburgs and the Bishop of Chur had been quarrelling over the judicial rights over the region for some time. On January 20, 1499, Habsburg troops occupied the valley and plundered the Benedictine Convent of Saint John at Müstair, but were soon driven back by the forces of the Three Leagues, and an armistice was signed already on February 2 in Glurns (Glorenza), a village in the upper Vinschgau.