Respectfully Quoted: A Dictionary of Quotations. 1989.
Otto von Bismarck (181598)
Who is master of Bohemia is master of Europe.
Attributed to OTTO VON BISMARCK. Unverified.
While this statement has frequently been quoted, it cannot be found in the official writings and pronouncements of Bismarck. It is possible that he said it, and it was passed on orally rather than being recorded, or that he expressed the sentiment in other terms and the idea took this form as others tried to quote him.