Question: Who was the prestigious military officer whose family was the inspiration for the movie “The Sound of Music”? 
Sentence (from "Johann Haas von Haagenfels"): Johann Freiherr Haas von Haagenfels (March 24, 1864 in Haag, Austria – May 15, 1932 in Vienna) was an Austro-Hungarian Army Officer.
Relevant evidence: No