1. University of Pennsylvania, Misc Mss (Large) Box 1 Folder 19 Title: In Evangelium Iohannis tractatus Author: Catholic Church Date: [between 1150 and 1199].
2. University of Pennsylvania, Misc Mss (Large) Box 1 Folder 15 Title: In Evangelium Iohannis tractatus Author: Catholic Church Date: ca. 1150-1175.