Question: What is the date of death of He Xiangning's husband?
Sentence (from "He Xiangning"): She served in many high-ranking positions after the foundation of the People's Republic of China, including Vice Chairwoman of the CPPCC (1954–64), Vice Chairwoman of the National People's Congress (1959–72), Chairwoman of the Revolutionary Committee of the Chinese Kuomintang (1960–72), and Honorary Chairwoman of the All-China Women's Federation.
Relevant evidence: No