ASCOT, ENGLAND - JUNE 20:  Queen Elizabeth II attends Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.  (Photo by Mark Cuthbert/UK Press via Getty Images)
ASCOT, ENGLAND - JUNE 21:  Queen Elizabeth II and Camilla, Duchess of Cornwall arrive by carriage at  Royal Ascot 2017 at Ascot Racecourse on June 21, 2017 in Ascot, England.  (Photo by Samir Hussein/WireImage)
ASCOT, UNITED KINGDOM - JUNE 20: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Princess Anne, The Princess Royal attends day 1 of Royal Ascot at Ascot Racecourse on June 20, 2017 in Ascot, England. (Photo by Max Mumby/Indigo/Getty Images)
ASCOT, ENGLAND - JUNE 21:  Queen Elizabeth II and Princess Anne, Princess Royal attend Royal Ascot 2017 at Ascot Racecourse on June 21, 2017 in Ascot, England.  (Photo by Mark Cuthbert/UK Press via Getty Images)