ザンクト・ガレン修道院
There are three extant manuscripts of the Gelasian Sacramentary, one at Vatican City, one at Zürich, and one at the Abbey of Saint Gall. The manuscripts are of the early 8th century. The groundwork is Roman, with Gallican additions and modifications. Evidence for the Gallican rites of ordination and some other matters is derived from this book.