Columbia subject headings:
Frederick William I, King of Prussia, 1688-1740.
Prussia (Germany)--Politics and government--1640-1740.
Harvard subject headings:
Frederick William I, King of Prussia, 1688-1740
Prussia (Germany)--Politics and government--1640-1740
Princeton subject headings:
Frederick William I, King of Prussia, 1688-1740.
Prussia (Germany)--Politics and government--1640-1740.