Question: What is the date of death of Gladys Spencer-Churchill, Duchess Of Marlborough's husband?
Sentence (from "Gladys Spencer-Churchill, Duchess of Marlborough"): Gladys Marie Spencer-Churchill, Duchess of Marlborough ("née" Deacon; 7 February 1881 – 13 October 1977) was a French American aristocrat and socialite.
Relevant evidence: No