Queen Elizabeth II, the King of Bahrain Hamad bin Isa Al Khalifa and the Duke of York 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, the King of Bahrain Hamad bin Isa Al Khalifa and the Duke of York 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)