Columbia subject headings:
Harvard subject headings:
Castles--Conservation and restoration--History.
Castles--Conservation and restoration--Italy--Trentino-Alto Adige.
Südtiroler Burgeninstitut--History.
Princeton subject headings:
Castles--Italy--Trentino-Alto Adige--History.
Historic buildings--Italy--Trentino-Alto Adige--History.
Südtiroler Burgeninstitut--History.
Trentino-Alto Adige (Italy)--Buildings, structures, etc.--History.