Question: What is the date of death of Chiang Hsiao-Wu's mother?
Sentence (from "Chiang Fang-liang"): Faina Chiang Fang-liang (15 May 1916 – 15 December 2004) was the wife of President Chiang Ching-kuo and served as First Lady of the Republic of China on Taiwan from 1978 to 1988.
Relevant evidence: Yes