Columbia subject headings:
Prussia (Germany)--History.
Prussia (Germany)--Politics and government.
Prussia, East (Poland and Russia)--History.
Prussia, East (Poland and Russia)--Politics and government.
Harvard subject headings:
Constitutional history--Germany--Prussia
Estates (Social orders)--Germany--Prussia--History.
Prussia (Germany)--Politics and government--1797-1840.
Princeton subject headings:
Constitutional history--Germany--Prussia.
Estates (Social orders)--Germany--Prussia--History.
Prussia (Germany)--Politics and government--1797-1840.