Columbia subject headings:
Art--Italy--Usigni.
Castles--Italy--Usigni.
Usigni (Italy)--Buildings, structures, etc.
Usigni (Italy)--History.
Harvard subject headings:
Church architecture--Italy--Usigni.
Usigni (Italy)--History.
Princeton subject headings:
Art--Italy--Usigni.
Castles--Italy--Usigni.
Usigni (Italy)--Buildings, structures, etc.
Usigni (Italy)--History.