Patricia Edwina Victoria Knatchbull, 2nd Countess Mountbatten of Burma (14 February 1924 – 13 June 2017) was a British peeress and the third cousin of Queen Elizabeth II. She was the elder daughter of Louis Mountbatten, 1st Earl Mountbatten of Burma and his wife, the heiress Edwina Ashley, a patrilineal descendant of the Earls of Shaftesbury, first ennobled in 1661.