Question: What is the place of birth of the composer of film The Mystery Of The Blue Room?
Sentence (from "Karel Hašler"): Karel Hašler (31 October 1879 in Prague – 22 December 1941 in Mauthausen) was a Czech songwriter, actor, lyricist, film and theatre director, composer, writer, dramatist, screenwriter and cabaretier.
Relevant evidence: Yes