Columbia subject headings:
Architecture, Medieval--Italy--Gualdo Cattaneo.
Fortification--Italy--Gualdo Cattaneo--History.
Gualdo Cattaneo (Italy)--Buildings, structures, etc.
Rocca (Gualdo Cattaneo, Italy)
Harvard subject headings:
Architecture, Medieval--Italy--Gualdo Cattaneo.
Architecture--Italy--Gualdo Cattaneo.
Foligno (Italy)--Relations--Italy--Gualdo Cattaneo.
Fortification--Italy--Gualdo Cattaneo--History.
Gualdo Cattaneo (Italy)--Buildings, structures, etc.
Gualdo Cattaneo (Italy)--History.
Gualdo Cattaneo (Italy)--Relations--Italy--Foligno.
Rocca (Gualdo Cattaneo, Italy)
Rocca di Gualdo Cattaneo (Gualdo Cattaneo, Italy)
Princeton subject headings:
Architecture, Medieval--Italy--Gualdo Cattaneo.
Fortification--Italy--Gualdo Cattaneo--History.
Gualdo Cattaneo (Italy)--Buildings, structures, etc.
Rocca (Gualdo Cattaneo, Italy)