The Diocese of Chur is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Switzerland. It extends over the Swiss Cantons of Graubünden (Grisons), Schwyz, Glarus, Zurich, Nidwalden, Obwalden, and Uri. The modern Catholic diocese must be distinguished from the historical Prince-Bishopric of Chur, a state of the Holy Roman Empire. A Bishop of Chur is first mentioned in 451/ 452 when its Bishop Saint Asimo attended the Synod of Milan, but probably existed a century earlier. The see was at first suffragan to the Archbishop of Milan, but after the Treaty of Verdun (843), it became suffragan to Mainz. In consequence of political changes it became in 1803 immediately subject to the Holy See. More information...
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