Louis XIV , also popularly known as the Sun King ( 5 September 1638 â `` 1 September 1715 ) was the King of France and King of Navarre from 14 May 1643 until his death . Louis XIV ( 5 September 1638 - 1 September 1715 ) , known as the Sun King ( French : le Roi Soleil ) , was King of France and of Navarre .