Dudley, Robert, Sir,  Lucini, Antonio Francesco, b. 1605,  and Onofri, Francesco, fl. 1631-1679.  "Al sermo. Ferdinando. II. Grandvca di Toscana svo signore Don Roberto Dudleo, Duca di Northumbria."  Map.  1647.  Norman B. Leventhal Map & Education Center,  https://collections.leventhalmap.org/search/commonwealth:cj82m381h (accessed September 21, 2019).