1. Newberry Library, VAULT folio Case MS 5170 DS ID: DS17716 Title: Letter Author: Francesco I de' Medici Place: Italy and Ferrara Date: 1559 [that is, 1560] Feb. 22.
2. Columbia University Rare Book & Manuscript Library, MS General 237 DS ID: DS19090 Title: Records Place: TunisTunisiaLivornoItaly Date: ca. 1750-1850.