The League of the Ten Jurisdictions was the last of the Three Leagues founded during the Middle Ages in what is now Canton Graubünden of Switzerland. The League was created in the County of Toggenburg after the counts of Toggenburg died out. The League initially existed to resist the power of the House of Habsburg, and quickly allied with the Grey League and the League of God's House. In 1524 the three leagues joined together to become the Free State of the Three League, which existed until the Napoleonic dissolution of the Free State.
The first leader of the League was Ulrich Beeli from Davos, and all future Bundstage (Council Meetings) occurred in Davos. The League quickly tied itself to the other surrounding leagues. Within one year (1437) eight of the members of the League had already allied with the League of God's House. The entire League allied with the League of God's House by 1450. In 1471 the League allied with the Grey League, forming the Three Leagues.
Soon after the death of the Toggenburgs, the League was not able to prevent the Court and Judgement rights from being split up and given to local nobles. Although the members of the League had control over the local administration and local politics, they did not have control over High Justice and taxes or levies.
Most of the League was given to the Graf von Montfort, the lower Prättigau went to the Graf von Matsch and Maienfeld and Malans went to the Baron von Brandis. Both Graf von Montfort and Graf von Matsch sold their rights to the Duke of Austria, Montfort in 1470 and Matsch in 1477 The duke combined the two territories (the eight jurisdictions) into a single Vogtei which was administered by an appointed Landvogt, who was generally a member of the League of the Ten Jurisdictions. The Landvogt lived at Burg Castels near Luzein.
The League of the Ten Jurisdictions was very active in the Three Leagues after 1471. After 1486 troops from the League participated in military action with the rest of the Three Leagues. In 1524, the League of the Ten Jurisdiction signed the Bundesbrief, which created the Three Leagues. However the some of the rights within the Ten Jurisdictions were still held by other noble families. For example, the Baron von Brandis held Maienfeld, which was a member of the League. In 1509 the Baron von Brandis separated the community of Maienfeld from his holdings, and transferred it to the emergent Three Leagues. Maienfeld became a Vogtei of the Leagues. This meant that Maienfeld was both a voting member of the League of the Ten Jurisdictions and under the control of the Three Leagues at the same time. Maienfeld indirectly administered itself as a controlled territory of the Three Leagues.
The rights to High Justice were held by the Dukes of Austria, until the League bought these rights from the duke in 1649-1652. It is only after this date that the League could fully participate in the Three Leagues.
The Three Leagues were normally allied with the Old Swiss Confederacy. Initially this was a response to the expansion of the Habsburgs. The Musso war against the Duchy of Milan in 1520 pushed the League closer to the Swiss Confederacy. The League would remain an associate to the Swiss until the Napoleonic Wars, when it was absorbed into the Helvetic Republic. After the Napoleonic Act of Mediation, the Three Leagues became the canton of Graubünden.