Columbia subject headings:
Este family--Exhibitions.
Ferrara (Italy)--Civilization--Exhibitions.
Modena (Italy)--Civilization--Exhibitions.
Harvard subject headings:
Este family--Art patronage.
Este family.
Ferrara (Italy)--Court and courtiers.
Ferrara (Italy)--History.
Modena (Italy)--Court and courtiers.
Modena (Italy)--History.
Nobility--Italy--Biography
Princeton subject headings:
Este family--Exhibitions.
Ferrara (Italy)--Civilization--Exhibitions.
Modena (Italy)--Civilization--Exhibitions.