LONDON, ENGLAND - MARCH 17: Catherine, Duchess of Cambridge attends the annual Irish Guards St Patrick's Day Parade at Household Cavalry Barracks on March 17, 2017 in London, England. (Photo by UK Press Pool/UK Press via Getty Images)
LONDON, ENGLAND - MARCH 17: Catherine, Duchess of Cambridge attends the annual Irish Guards St Patrick's Day Parade at Household Cavalry Barracks on March 17, 2017 in London, England. (Photo by UK Press Pool/UK Press via Getty Images)