Columbia subject headings:
Frederick II, King of Prussia, 1712-1786--Portraits.
Menzel, Adolph, 1815-1905.
Menzel, Adolph, 1815-1905. Flute concert at Sans Souci.
Harvard subject headings:
Frederick II, King of Prussia, 1712-1786--Portraits.
Menzel, Adolph, 1815-1905. Flötenkonzert in Sanssouci.
Princeton subject headings:
Frederick II, King of Prussia, 1712-1786 in art.
Menzel, Adolph, 1815-1905. Flötenkonzert in Sanssouci.