1. University of Pennsylvania, LJS 119 Title: Manuscript leaf from a collection of papal decretals Author: Catholic Church Date: 1300s.
2. University of Pennsylvania, Oversize LJS 280 Title: Decretales Gregorii IX Author: Catholic Church Place: France Date: [between 1250 and 1299]
3. University of Pennsylvania, LJS 35 Title: Decretales Gregorii IX Author: Catholic Church Date: between 1240 and 1260.
4. University of Pennsylvania, Misc Mss (Large) Box 1 Folder 16 Title: In Evangelium Iohannis tractatus Author: Catholic Church Date: between 1275 and 1299.
5. University of Pennsylvania, Oversize Ms. Codex 1059 Title: Decretales Gregorii IX Author: Catholic Church Place: France Date: [between 1280 and 1299]