St. Gall Stiftsbibliothek 673, p. 3

Gratianus Compiled Three Recensions of his Decretum Concordantia discordantium canonum 1. St. Gall 673 ca. 1125-1130 2. 5 Manuscripts ca. 1133-1135 Admont, Florence, Paris (2x), Barcelona 3. Vulgate text: over a 1000 manuscripts  ca. 1140 4. The Corpus iuris canonici also consisted of collections containing papal decretals. 5. The Priesterseminar contains all the collections of papal decretals and many commentaries on them.