1. University of Pennsylvania, Ms. Coll. 742 Folder 107 DS ID: DS1808 Title: Minutes Author: Università de' mercanti (Siena) Date: 1399.
2. University of Pennsylvania, Ms. Coll. 742 Folder 34 DS ID: DS1853 Title: Notarial document Author: Università de' mercanti (Siena) Date: 1439.