Columbia subject headings:
Huygens, Constantijn, 1596-1687--Family--Exhibitions.
Huygens, Constantijn, 1596-1687--Relations with women--Exhibitions.
Harvard subject headings:
Huygens, Constantijn, 1596-1687--Friends and associates--Exhibitions.
Princeton subject headings:
Huygens, Constantijn, 1596-1687--Friends and associates--Exhibitions.