1. University of Pennsylvania, Ms. Coll. 764 Item 181 DS ID: DS2001 Title: Papal brief Author: Leo X Date: 1516.
2. University of Pennsylvania, Ms. Coll. 764 Item 187 DS ID: DS2007 Title: Papal brief Author: Pius IV Date: 1546.
3. Pepperdine University, BX1319.P37 1554 DS ID: DS30379 Title: Papal brief Place: Worms and Germany Date: 1554.