Columbia subject headings:
Castles--Italy--Nardò.
Fortification--Italy--Nardò.
Nardò (Italy)--History, Military.
Privileges and immunities--Italy--Nardò.
Harvard subject headings:
Castles--Italy--Nardo.
Fortification--Italy--Nardo.
Military architecture--Italy--Nardo.
Nardò (Italy)--Buildings, structures, etc.
Nardò (Italy)--History, Military.
Nardò (Italy)--History.
Privileges and immunities--Italy--Nardò
Princeton subject headings:
Castles--Italy--Nardò.
Fortification--Italy--Nardò.
Nardò (Italy)--Buildings, structures, etc.
Nardò (Italy)--History.
Property--Italy--Nardò--History.