prince bishopric · Germany and Central Europe

Imperial Abbey of Saint Gall

1206 CE – 1798 CE (approx.) · capital St. Gallen

Benedictine abbey famed for its early medieval library whose prince-abbots ruled north-eastern Switzerland until the French invasion of 1798.

Origins

The abbey grew from the cell of the Irish monk Gallus and was founded as a monastery by Otmar in 719. Its scriptorium, library and the Plan of Saint Gall made it a centre of Carolingian learning. Its abbots gained wide estates, and from 1206 they were recognised as princes of the Empire.

Rule and society

The prince-abbots governed lands around Lake Constance and the Thur, but lost Appenzell in the Appenzell Wars and clashed with the city of St. Gallen. Abbot Ulrich Rösch rebuilt their power, buying the County of Toggenburg in 1468 and allying with the Old Swiss Confederacy. The abbey remained Catholic, while the city and parts of Toggenburg turned Protestant. Its baroque church and library were built in the 1750s and 1760s.

Decline and legacy

The French invasion of 1798 and the Helvetic Republic ended its secular rule, and the abbey was dissolved in 1805. Its lands became the canton of St. Gallen in 1803. The abbey precinct and library are a UNESCO World Heritage Site.

Lineage

County of Toggenburg 1209 CE – 1468 CEImperial Abbey of Saint GallHelvetic Republic 1798 CE – 1803 CE

Connections (3)

Imperial Abbey of Saint Gall was part of Holy Roman Empire1206 CE – 1648 CE
Canton of Appenzell split from Imperial Abbey of Saint Gall1403 CE – 1411 CE
Imperial Abbey of Saint Gall was a vassal of Old Swiss Confederacy1451 CE – 1798 CE

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Cite this page

APA: The Epoch Institute. (2026). Imperial Abbey of Saint Gall. In The Epoch Institute States Register. https://the-epoch-institute.org/state/imperial-abbey-of-saint-gall
MLA: “Imperial Abbey of Saint Gall.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/imperial-abbey-of-saint-gall. Accessed .
Chicago: The Epoch Institute. “Imperial Abbey of Saint Gall.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/imperial-abbey-of-saint-gall.
Harvard: The Epoch Institute (2026) ‘Imperial Abbey of Saint Gall’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/imperial-abbey-of-saint-gall (Accessed: ).

Last reviewed October 2026Random state ↻