Question: When did Patricia Knatchbull, 2Nd Countess Mountbatten Of Burma's father die?
Sentence (from "Patricia Knatchbull, 2nd Countess Mountbatten of Burma"): Patricia Edwina Victoria Knatchbull, 2nd Countess Mountbatten of Burma, (née Mountbatten; 14 February 1924 – 13 June 2017), was a British peeress and the third cousin of Queen Elizabeth II.
Relevant evidence: No