Columbia subject headings:
Harvard subject headings:
Art--Collectors and collecting--Italy--Milan--History.
Ivories, Medieval.
Ivories--Collectors and collecting--Italy--Milan.
Trivulzio family--Art collections.
Princeton subject headings:
Art--Collectors and collecting--Italy--History.
Ivories--History.
Ivories--Private collections--Italy--History.
Trivulzio family--Art collections.