In 1660 when King Charles II was restored to the throne , the King of France , Louis XIV , created Charles brother James Duke of Normandy , probably as a show of support for monarchy and to stop Charles claiming the title himself . James II was created `` Duke of Normandy '' by King Louis XIV of France , 31 December 1660 . This was a few months after the restoration of his brother Charles II to the English and Irish thrones ( Charles II had been crowned King of Scotland in 1651 ) , and probably was done as a political gesture of support for James - since his brother also would have claimed the title `` Duke of Normandy '' .