Columbia subject headings:
Harvard subject headings:
Europe--History--1648-1789.
Europe--History--18th century.
Frederick II, King of Prussia, 1712-1786.
Prussia (Germany)--History--Frederick II, 1740-1786.
Prussia (Germany)--Kings and rulers--Biography.
Princeton subject headings:
Frederick II, King of Prussia, 1712-1786.
Prussia (Germany)--History--Frederick II, 1740-1786.