Silvia Monfort: Silvia Monfort. Actress: The Secret of Mayerling. Silvia Monfort was born on 7 June 1923 in Paris, France. She was an actress and writer, known for The Secret of Mayerling (1949), Emmenez-moi au théâtre (1982) and Riff Raff Girls (1959). She was married to Pierre Gruneberg and Maurice Clavel. She died on 30 March 1991 in Paris, France.
