LONDON, ENGLAND - DECEMBER 20: Lady Sarah Chatto attends the annual Buckingham Palace Christmas lunch hosted by The Queen at Buckingham Palace on December 20, 2016 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - DECEMBER 20: Lady Sarah Chatto attends the annual Buckingham Palace Christmas lunch hosted by The Queen at Buckingham Palace on December 20, 2016 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)