1. Boston Public Library, MS q Med.20 DS ID: DS3490 Title: Astronomica Author: Marcus Manilius Place: Ferrara Date: 1461.
2. 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.