Columbia subject headings:
Frederick I, King of Prussia, 1657-1713.
Sophie Charlotte, Queen, consort of Frederick I, King of Prussia, 1668-1705.
Harvard subject headings:
Prussia (Germany)--History--Frederick I, 1688-1713.
Queens--Germany--Prussia--Biography.
Sophie Charlotte, Queen, consort of Frederick I, King of Prussia, 1668-1705.
Princeton subject headings:
Frederick I, King of Prussia, 1657-1713.
Sophie Charlotte, Queen, consort of Frederick I, King of Prussia, 1668-1705.