Columbia subject headings:
Nobility--Germany--Prussia--History.
Prussia (Germany)--History.
Prussia (Germany)--Politics and government.
Harvard subject headings:
Nobility--Germany--Prussia--History.
Prussia (Germany)--History.
Prussia (Germany)--Politics and government.
Princeton subject headings:
Nobility--Germany--Prussia--History.
Prussia (Germany)--History.
Prussia (Germany)--Politics and government.