Columbia subject headings:
Architecture, Domestic--Italy--Venice.
Mansions--Italy--Venice--History.
Harvard subject headings:
Architecture, Domestic--Italy--Veneto.
Castles--Italy--Veneto.
Historic buildings--Italy--Veneto.
Mansions--Italy--Veneto.
Nobility--Dwellings--Italy--Veneto.
Princeton subject headings:
Architecture, Domestic--Italy--Venice.
Mansions--Italy--Venice--History.