Queen Elizabeth II looks at her horse Whalton Highwayman during the Royal Windsor Horse Show, which is held in the grounds of Windsor Castle in Berkshire. (Photo by Steve Parsons/PA Images via Getty Images)
Queen Elizabeth II during the Royal Windsor Horse Show, which is held in the grounds of Windsor Castle in Berkshire. (Photo by Steve Parsons/PA Images via Getty Images)
Queen Elizabeth II during the Royal Windsor Horse Show, which is held in the grounds of Windsor Castle in Berkshire. (Photo by Steve Parsons/PA Images via Getty Images)
Queen Elizabeth II during the Royal Windsor Horse Show, which is held in the grounds of Windsor Castle in Berkshire. (Photo by Steve Parsons/PA Images via Getty Images)
Queen Elizabeth II during the Royal Windsor Horse Show, which is held in the grounds of Windsor Castle in Berkshire. (Photo by Steve Parsons/PA Images via Getty Images)
