Question: What is the date of death of Kang Keqing's husband?
Sentence (from "Kang Keqing"): Kang Keqing (K'ang K'e-ching; ; September 7, 1911 – April 22, 1992) was a politician of the People's Republic of China, and the wife of Zhu De until his death in 1976.
Relevant evidence: Yes