1. University of Pennsylvania, Ms. Codex 1249 Title: Contracts Author: Pius III Place: Siena Date: between 1492 and 1502. [1502?]
2. University of Pennsylvania, Ms. Coll. 742 Folder 112 Title: Papal agreement Author: Pius III Date: 1485.
3. University of Pennsylvania, Ms. Coll. 742 Folder 114 Title: Papal judgement Author: Pius III Date: 1499.
4. University of Pennsylvania, Ms. Coll. 742 Folder 115 Title: Papal judgement Author: Pius III Date: 1500.