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LONDON, UNITED KINGDOM - JUNE 27: Pallbearers from the Second Battalion, Princess Patricia's Canadian Light Infantry (2PPCLI), known as 'The Patricia's', carry the coffin of Patricia Knatchbull, Countess Mountbatten of Burma at the start of her funeral service at St Paul's Church in Knightsbridge on June 27, 2017 in London, United Kingdom. (Photo Matt Dunham - WPA Pool/Getty Images)

LONDON, UNITED KINGDOM - JUNE 27:  Pallbearers from the Second Battalion, Princess Patricia's Canadian Light Infantry (2PPCLI), known as 'The Patricia's', carry the coffin of Patricia Knatchbull, Countess Mountbatten of Burma at the start of her funeral service  at St Paul's Church in Knightsbridge on June 27, 2017 in London, United Kingdom. (Photo Matt Dunham - WPA Pool/Getty Images)