WINDSOR, ENGLAND - MAY 12: Queen Elizabeth II with her horse Murthwaite Dawn Chorus during the Windsor Horse Show on May 12, 2017 in Windsor, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
WINDSOR, ENGLAND - MAY 12: Queen Elizabeth II and Prince Andrew, Duke of York at the Endurance Event at the Windsor Horse Show on May 12, 2017 in Windsor, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
WINDSOR, ENGLAND - MAY 12: Queen Elizabeth II at the Endurance Event at the Windsor Horse Show on May 12, 2017 in Windsor, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
Queen Elizabeth II and the King of Bahrain Hamad bin Isa Al Khalifa during the Royal Windsor Horse Show, which is held in the grounds of Windsor Castle in Berkshire. (Photo by Nick Ansell/PA Images via Getty Images)
Queen Elizabeth II get in her car after watching pony displays during the Royal Windsor Horse Show, held in the grounds of Windsor Castle in Berkshire. (Photo by Nick Ansell/PA Images via Getty Images)
