Columbia subject headings:
Account books--Italy--Rome--History--17th century--Sources.
Caetani family--Archives.
Caetani family--Art collections.
Harvard subject headings:
Art--Collectors and collecting--History--Sources.
Caetani family--Archives.
Caetani family--Art collections.
Caetani family--Art patronage.
Painting--Private collections--Italy--Rome.
Princeton subject headings:
Art--Collectors and collecting--History--Sources.
Caetani family--Archives.
Caetani family--Art collections.
Painting--Private collections--Italy--Rome.