Question: When did Maria Anna Of Savoy, Duchess Of Chablais's husband die?
Sentence (from "Prince Benedetto, Duke of Chablais"): Benedetto of Savoy (Benedetto Maria Maurizio; 21 June 1741 – 4 January 1808) was an Italian nobleman and military leader, who was prince of Savoy and Duke of Chablais.
Relevant evidence: Yes