ザンクト・ガレン修道院
Peter Thumb (1681–1767) was an Austrian architect whose family came from the Vorarlberg, the today westernmost part of Austria. He is best known for his Rococo architecture, mainly in Southern Germany. Outstanding examples of his work include the pilgrimage church at Birnau on Lake Constance and the monastery library at the Abbey of Saint Gall, Saint Gallen, Switzerland.