Columbia subject headings:
Architecture, Baroque--Italy.
Mansions--Italy--17th century.
Mansions--Italy--18th century.
Nobility--Italy--Homes and haunts.
Harvard subject headings:
Architecture, Baroque--Italy.
Mansions--Italy--17th century.
Mansions--Italy--18th century.
Nobility--Italy--Homes and haunts.
Princeton subject headings:
Architecture, Domestic--Italy.
Mansions--Italy.
Nobility--Italy--Homes and haunts.