Question: What is the date of death of Queen Cheorin's husband?
Sentence (from "Queen Cheorin"): Queen Cheorin (27 April 1837 – 12 June 1878) (철인왕후 김씨) also known as Queen Mother Myeongsun (명순대비) was a Queen consort of Korea by marriage to King Cheoljong of Joseon.
Relevant evidence: Yes