Fritz von Waldbaum
Vital statistics
Sex Male
Nationality German
Occupation Investigative specialist
Behind the scenes
Appearances "The Adventure of the Naval Treaty"

Fritz von Waldbaum was a famous German investigative specialist from the city of Danzig in West Prussia. He is mentioned by Watson in "The Adventure of the Naval Treaty", but in connection with another of Sherlock Holmes' cases: "The Adventure of the Second Stain", which von Waldbaum had unsuccessfully tried to solve prior to Holmes' involvement. Holmes gave von Waldbaum and Monsieur Dubuque, a Parisian detective working the case, an interview after Holmes had solved it, where he expounded the correct solution and showed them that both had wasted their energy on side-issues rather than the facts of importance.


  • Since World War II the city of Danzig has been part of Poland, and is called by its Polish name, Gdańsk. The German-speaking population was expelled after the war.

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