Columbia subject headings:
Painting, English--England.
Painting, English--Germany.
Portrait painting, English--18th century.
Portrait painting, English--19th century.
Portrait painting, German--18th century.
Portrait painting, German--19th century.
Portrait painting, German--England.
Portrait painting, German--Germany.
Harvard subject headings:
Portrait painting, English--Influence.
Portrait painting, German--18th century.
Portrait painting, German--19th century.
Portrait painting, German--British influences.
Portrait painting, German--Foreign influences.
Portrait painting--18th century--England--Influence.
Portrait painting--18th century--Germany--Foreign influences.
Portrait painting--19th century--Germany--Foreign influences.
Princeton subject headings:
Portrait painting, English--Influence.
Portrait painting, German--Foreign influences.
Portrait painting--18th century--England--Influence.
Portrait painting--18th century--Germany--Foreign influences.
Portrait painting--19th century--Germany--Foreign influences.