HOUNSLOW, ENGLAND - MARCH 17: Catherine, Duchess of Cambridge attends the 1st Battalion Irish Guards St Patrick's Day Parade at Cavalry Barracks on March 17, 2019 in Hounslow, England. (Photo by Pool/Samir Hussein/WireImage)
HOUNSLOW, ENGLAND - MARCH 17: Catherine, Duchess of Cambridge attends the 1st Battalion Irish Guards St Patrick's Day Parade at Cavalry Barracks on March 17, 2019 in Hounslow, England. (Photo by Pool/Samir Hussein/WireImage)