Columbia subject headings:
Castles--Italy--Veneto--History.
Scala family.
Veneto (Italy)--History, Local.
Harvard subject headings:
Castles--Italy--Veneto--History.
Scala family.
Veneto (Italy)--History, Local.
Princeton subject headings:
Castles--Italy--Veneto--History.
Scala family.
Veneto (Italy)--History, Local.