Columbia subject headings:
Art patronage--Italy--History--Congresses.
Art, Italian--Congresses.
Art--Collectors and collecting--Italy--History--Congresses.
Bonelli family--Art collections--Congresses.
Bonelli family--Art patronage--Congresses.
Harvard subject headings:
Art, Italian
Art--Collectors and collecting--Italy--History.
Bonelli family--Art collections.
Bonelli family--Art patronage.
Princeton subject headings:
Art patronage--Italy--History--Congresses.
Art, Italian--Congresses.
Art--Collectors and collecting--Italy--History--Congresses.
Bonelli family--Art collections--Congresses.
Bonelli family--Art patronage--Congresses.