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Prince Harry, Duke of Sussex, is the youngest uncle of Lady Louise Windsor. He is the second son of King Charles III and the late Diana, Princess of Wales. Born on 15 September 1984, Prince Harry is sixth in line to the British throne. He married American actress Meghan Markle in 2018 and has two children: Archie Harrison Mountbatten-Windsor and Lilibet Diana Mountbatten-Windsor.