1. Newberry Library, VAULT box Ayer MS 1225 DS ID: DS17662 Title: Land grant Author: Spain and Charles V Place: Zaragoza and Spain Date: 1534 Jan. 6.
2. Newberry Library, VAULT box Ayer MS 2191 DS ID: DS17728 Title: Letter Author: Joanna of Austria, Princess of Portugal Place: Valladolid Date: 1555 July 17.