ASCOT, ENGLAND - JUNE 23: Mrs Charles Butter and Mrs David Bowes-Lyon arrive in the Royal Procession on day 4 of Royal Ascot 2017 at Ascot Racecourse on June 23, 2017 in Ascot, England. (Photo by Kirstin Sinclair/Getty Images for Ascot Racecourse)
ASCOT, ENGLAND - JUNE 23: Mrs Charles Butter and Mrs David Bowes-Lyon arrive in the Royal Procession on day 4 of Royal Ascot 2017 at Ascot Racecourse on June 23, 2017 in Ascot, England. (Photo by Kirstin Sinclair/Getty Images for Ascot Racecourse)