LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge cheering on runners during the 2017 Virgin Money London Marathon on April 23, 2017 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge cheering on runners during the 2017 Virgin Money London Marathon on April 23, 2017 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)