Question: What is the date of death of the director of film Ön?
Sentence (from "Alf Sjöberg"): He won the Grand Prix du Festival at the Cannes Film Festival twice: in 1946 for "Torment"  (part of an eleven-way tie), and in 1951 for his film "Miss Julie"  (an adaptation of August Strindberg's play which tied with Vittorio De Sica's "Miracle in Milan").
Relevant evidence: No