1. University of Pennsylvania, Ms. Coll. 742 Folder 106 Title: Legal documents Author: Roman Catholic Archdiocese of Siena Date: 1331.
2. University of Pennsylvania, Ms. Coll. 742 Folder 107 Title: Minutes Author: Università de' mercanti (Siena) Date: 1399.
3. University of Pennsylvania, Ms. Coll. 742 Folder 18 Title: Decision Author: Consiglio Generale Date: 1363.
5. University of Pennsylvania, Ms. Coll. 742 Folder 23 Title: Terms of payment Author: Tengoccio d'Enea de Piccolomini Date: 1387.