Columbia subject headings:
Harvard subject headings:
Electors (Kurfürsten)--Biography.
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688
Prussia (Germany)--History--Frederick William, the Great Elector, 1640-1688
Prussia (Germany)--Kings and rulers--Biography
Princeton subject headings:
Biographies.
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688.
Germany--Kings and rulers--Biography.
Prussia (Germany)--History--Frederick William, the Great Elector, 1640-1688.