Question: When did Queen Gongwon's husband die?
Sentence (from "Queen Gongwon"): Queen Gongwon (18 July 1298 – January 1380) also known as Queen Mother Myeongdeok was queen consort to king Chungsuk of Goryeo and the mother of king Chunghye of Goryeo and king Gongmin of Goryeo.
Relevant evidence: Yes