Question: What is the date of death of Grace Alekhine's husband?
Sentence (from "Grace Alekhine"): Grace Norton Eisler Peeke Freeman Bromley Alekhine (born Grace Norton Wishaar; 26 October 1876 – 21 February 1956) was an American-British-French artist, chess master, and the fourth and last wife of World Chess Champion Alexander Alekhine, who was her fifth husband.
Relevant evidence: Yes