Columbia subject headings:
Diplomats--France--History--16th century--Correspondence.
France--Civilization--16th century.
Italians--France--History--16th century--Correspondence.
Harvard subject headings:
Art--Collectors and collecting--France--Correspondence.
Diplomats--France--History--16th century--Correspondence.
Este family--Correspondence.
France--Civilization--16th century--Correspondence.
Italians--France--History--16th century--Correspondence.
Princeton subject headings:
Ambassadors--Italy--Ferrara--Correspondence.
Art, French--16th century--Sources.
France--Civilization--16th century--Sources.