Question: When did the director of film Mignon (1915 Film) die?
Sentence (from "Mignon (1915 film)"): Mignon, is a 1915 American silent drama film directed by William Nigh with production supervised by Alexander E. Beyfuss, based on the opera "Mignon" that was from the novel "Wilhelm Meisters Lehrjahre" by Johann Wolfgang von Goethe.
Relevant evidence: Yes