Columbia subject headings:
Frederick I, King of Württemberg, 1754-1816.
Württemberg (Germany)--History--Frederick I, 1797-1816.
Württemberg (Germany)--Kings and rulers--Biography.
Harvard subject headings:
Frederick I, King of Württemberg, 1754-1816.
Württemberg (Germany)--Kings and rulers--Biography.
Württemberg (Germany)--History--Frederick I, 1797-1816.
Princeton subject headings:
Frederick I, King of Württemberg, 1754-1816.
Württemberg (Germany)--History.