1. Harry Ransom Center, Incun 1491 T675ex DS ID: DS12011 Title: Commentary on Decretals of Gregory IX Author: Panormitanus Place: France Date: 1400-1540
2. Newberry Library, VAULT folio Case MS 68 DS ID: DS17781 Title: Commentary on Decretals of Gregory IX Place: France Date: between 1425 and 1475