Columbia subject headings:
Emilia-Romagna (Italy)--History, Military.
Este family.
Ferrara (Italy)--History, Military.
Soldiers--Italy--Emilia-Romagna--History.
Soldiers--Italy--Emilia-Romagna--Social conditions.
Harvard subject headings:
Emilia-Romagna (Italy)--History, Military--To 1500.
Este family.
Soldiers--Italy--Emilia-Romagna--History.
Soldiers--Italy--Emilia-Romagna--Social conditions.
Princeton subject headings: