Columbia subject headings:
Harvard subject headings:
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688--Family.
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688--Friends and associates.
Nobility--Germany--Brandenburg (State)--Biography.
Prussia (Germany)--History--Frederick William, the Great Elector, 1640-1688
Prussia (Germany)--Kings and rulers--Biography
Prussia (Germany)--Kings and rulers--Children--Biography.
Princeton subject headings:
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688--Family.
Friedrich Wilhelm, Elector of Brandenburg, 1620-1688.
Germany--Kings and rulers--Biography.
Prussia (Germany)--History--Frederick William, the Great Elector, 1640-1688.