Columbia subject headings:
Harvard subject headings:
Düsseldorfer Malerschule.
Painters--Germany--Düsseldorf--Biography.
Painting, German--Germany--Düsseldorf.
Painting, Modern--19th century--Germany--Düsseldorf.
Princeton subject headings:
Düsseldorfer Malerschule.
Painters--Germany--Düsseldorf--Biography.
Painting, German--19th century--Düsseldorf.
Painting, German--Germany--Düsseldorf.
Portraits--Germany--Düsseldorf.