Columbia subject headings:
Frederick II, King of Prussia, 1712-1786--Pictorial works--Exhibitions.
Prussia (Germany)--Kings and rulers--Pictorial works--Exhibitions.
Harvard subject headings:
Frederick II, King of Prussia, 1712-1786--Pictorial works--Exhibitions.
Prussia (Germany)--Kings and rulers--Pictorial works--Exhibitions.
Princeton subject headings:
Frederick II, King of Prussia, 1712-1786--Portraits--Exhibitions.
Prussia (Germany)--Kings and rulers--Biography.