Frederick Douglass (abolitionist); Fred Astaire (born Frederick Austerlitz, actor, dancer); William Frederick Durst (aka Fred Durst, musician); Sir Frederick Grant Banting (co-discoverer of insulin); Freddie Prinze (born Frederick Karl Pruetzel, actor); Friedrich Nietzsche (philosopher); Freddie Mercury (born Farrokh Bulsara, musician); Frederick (several kings, archdukes and Holy Roman Emperors throughout Europe)
