1. University of Pennsylvania, Ms. Codex 720 DS ID: DS1622 Title: Lectura super capitali Firmiter credimus Author: Konrad III. von Soltau Place: Bologna and Italy Date: 1388.
2. University of Pennsylvania, Ms. Codex 721 DS ID: DS1623 Title: Oculus sacerdotis Author: William of Pagula Place: England Date: 1390-1425