1. Lehigh University, SC MS 0431 GU 21 DS ID: DS30449 Title: Binding fragment and Decretals of Gregory IX Place: Germany Date: 13 century (2nd half)
2. The Huntington Library, Art Museum, and Botanical Gardens, mssHM 19999 DS ID: DS9945 Title: Decretals of Gregory IX Place: France Date: between 1285 and 1299].