1. Ohio State University, Spec.Rare.MS.MR.Frag.286 DS ID: DS11705 Title: Decretals of Gregory IX Author: Gregory IX Place: Bologna and Italy Date: ca. 1325
2. Newberry Library, VAULT oversize box Case MS Fragment 58 DS ID: DS18358 Title: Decretals of Gregory IX Author: Catholic Church Place: Italy Date: between 1300 and 1399