Frankfort, 87
Frankfort, Peace of, 376, 377
Frederick, Crown Prince, afterward
Frederick III., 183, 184,
207, 219, 220, 236, 260, 276,
324, 325, 336, 342, 343, 366,
369, 416, 445-450
Frederick William, Elector of
Brandenburg, 6
Frederick William III., 36, 37