Columbia subject headings:
Costa family--Archives--Catalogs.
Gavotti family--Archives--Catalogs.
Nobility--Italy--Archives--Catalogs.
Nobility--Italy--History--Sources.
Siri family--Archives--Catalogs.
Harvard subject headings:
Art patrons--Italy--Liguria.
Art patrons--Italy--Rome.
Art--Collectors and collecting--Italy--Liguria.
Art--Collectors and collecting--Italy--Rome.
Art--Private collections--Italy--Liguria.
Art--Private collections--Italy--Rome.
Palaces--Italy--Liguria.
Palaces--Italy--Rome
Princeton subject headings:
Art patrons--Italy--Liguria.
Art patrons--Italy--Rome.
Art--Collectors and collecting--Italy--Liguria.
Art--Collectors and collecting--Italy--Rome.
Art--Private collections--Italy--Liguria.
Art--Private collections--Italy--Rome.
Palaces--Italy--Liguria.
Palaces--Italy--Rome.