The Abbey of Saint Gall is a dissolved abbey (747–1805) in a Catholic religious complex in the city of St. Gallen in Switzerland. The Carolingian-era monastery has existed since 719 and became an independent principality between 9th and 13th centuries, and was for many centuries one of the chief Benedictine abbeys in Europe. It was founded by Saint Othmar on the spot where Saint Gall had erected his hermitage. The library of the Abbey is one of the richest medieval libraries in the world. The city of St. Gallen originated as an adjoining settlement of the abbey. Following the secularization of the abbey around 1800 the former Abbey church became a Cathedral in 1848. Since 1983 the whole remaining abbey precinct has been a UNESCO World Heritage Site.
Clanx Castle is a ruined castle in the Appenzell District of the canton of Appenzell Innerrhoden in Switzerland.
Ulrich of Eppenstein (?ca.1047–1121) served between 1071 and his death as Abbot of the powerful Abbey of Saint Gall. Ulrich was prominent as a supporter of Emperor Henry IV during the civil wars that erupted out of the power struggles between the emperor and the papacy during the closing decades of the eleventh century.
Gozbert was abbot of the Abbey of Saint Gall from 816 until 837 and also abbot of Rheinau Abbey until 850. The beginning of his term of office in Rheinau is unknown.
Heinrich von Twiel was counter-abbot of the Abbey of Saint Gall from 1121 to 1122.
Manegold von Mammern was abbot of the Abbey of Saint Gall from 1121 to 1133. He descended from a noble family from the area around Untersee. He is documented for the years 1125 and 1126.
Ulrich von Tegerfelden was Bishop of Chur and Abbot of Saint Gall.
Ulrich von Veringen was abbot of the Abbey of Saint Gall from 1199 to 1200. He descended from the counts of Veringen and was probably the son of Count Marquard von Veringen and a brother of Count Heinrich and Count Manegold von Veringen.
Ulrich von Sax was Abbot of Saint Gall from 1204 until his death.
Rudolf von Güttingen was Abbot of Saint Gall from 1220 and Bishop of Chur from 1224 until his death. He is documented for the first time in 1208.
Berchtold von Falkenstein was abbot of the benedictine Abbey of Saint Gall from 1244 until 1272.
Heinrich von Gundelfingen was abbot of the Abbey of Saint Gall from 1411 to 1418 when he resigned. He was the grandfather of Heinrich von Gundelfingen.
Konrad von Pegau was abbot of the Abbey of Saint Gall from 1418 to 1419.
Heinrich von Mansdorf was abbot of the Abbey of Saint Gall from 1419 to 1426.
Ulrich Rösch was abbot of the Abbey of Saint Gall from 1463 to 1491. He is considered one of the most outstanding abbots of the monastery.
Rumo von Ramstein was abbot of the Abbey of Saint Gall from 1274 until 1281.
Heinrich von Ramstein was abbot of the benedictine Abbey of Saint Gall from 1301 until 1318.
Wilhelm I Count of Montfort was prince-abbot of Saint Gall from 1281 until 1301.
Heinrich von Klingen was abbot of the Abbey of Saint Gall from 1200 until 1204.
Ulrich von Güttingen was the abbot of the Abbey of Saint Gall from 1272 until his death.
