Columbia subject headings:
Art patronage--Italy--Ferrara.
Ercole I d'Este, Duke of Ferrara, Modena, and Reggio, 1431-1505.
Este family.
Ferrara (Italy)--History.
Harvard subject headings:
Art patronage--Italy--Ferrara.
Ercole I d'Este, Duke of Ferrara, Modena, and Reggio, 1431-1505.
Este family.
Ferrara (Italy)--History.
Princeton subject headings:
Art patronage--Italy--Ferrara--History.
Ercole I d'Este, Duke of Ferrara, Modena, and Reggio, 1431-1505.
Este family.
Ferrara (Italy)--Genealogy.
Ferrara (Italy)--History.