and continue down the Rhine River. In 926 more Magyar raiders attacked the abbey and the nearby town of St Gallen. The Lordship of Schellenberg was constituted in the 9th century by Charlemagne. Medieval history In the years 1007 and 1027 the Emperors of the Holy Roman Empire granted the counties of Trento and Vinschgau to the Bishopric of Trent and the Bishopric of Brixen the County of Norital in 1027 and the Puster Valley in 1091 by the county of Milan and Como. By about 1100 Ticino was the centre of struggle between the free communes of Milan and Como. The upper Rhine River had been visited by traders since Roman times, but acquired greater importance under the Ottonian dynasty of the Holy Roman Empire. Emperor Otto I appointed his vassal Hartpert as bishop of Chur in 958 and awarded the bishopric numerous privileges. In 1170 the bishop became a prince-bishop and kept total control over the road between Chur and Chiavenna. The first written evidence of a settlement at Innsbruck dates back to 1180 and the town named Oeni Pontum or Oeni Pons which is Latin for bridge (pons) over the Inn River (Flumen Oenus). It was built there some time earlier than its first recorded account, possibly even around Roman Veldidena in the 4th Century, due to the important crossing point over the Inn River. The Counts of Andechs first acquired the town in 1180 and then the town passed into the hands of the Counts of Tyrol in 1248 From upper Valais, the Walser began to spread south, west and east between the 12th and 13th centuries, in the so-called Walser migrations (Walserwanderungen). Nearly 1,500 years later the people of Triesenberg in Liechtenstein still speak a dialect of German that was influence of Walser migrants from the early in the 14th century. In the 13th century Chur had some 1,300 inhabitants and was surrounded by a line of walls. In 1367 the foundation of the Three Leagues in the area was a first step towards Chur's autonomy: a burgmeister (mayor) is first mentioned in 1413, and the bishop's residence was attacked by the inhabitants. Chur was the chief town of the Gotteshausbund or Chadé (League of the House of God), and one of the regular meeting places of the assemblies of the Leagues. As the power of the bishops, now increasingly under the influence of the