Columbia subject headings:
Harvard subject headings:
Castles--Italy--Gioiosa Guardia.
Gioiosa Guardia (Italy)--Antiquities.
Gioiosa Guardia (Italy)--History.
Princeton subject headings:
Castello di Gioiosa Guardia (Gioiosa Guardia, Italy).
Castles--Italy--Gioiosa Guardia.
Gioiosa Guardia (Italy)--History.