Question: What is the date of death of Ngô Đình Nhu's wife?
Sentence (from "Madame Nhu"): Known for her harsh and incendiary comments that denounced anti-government protests by some Buddhist sects and the strong U.S. influence and presence in the country, she had to live in exile in France after her husband and her brother-in-law, Diệm, were assassinated in 1963.
Relevant evidence: No