William III (14 November 1650 – 8 March 1702) was King of England and King of Ireland from 13 February 1689, and King of Scots from 11 April 1689. In all these three cases, he remained the king until his death on 8 March 1702.
William was born in the Netherlands. His mother was Mary Stuart. Mary was the sister of the King of England, James II, so King James was William's uncle. The people of England did not like King James, and he was overthrown in the "Glorious Revolution" of 1688. King James escaped to France, and William became the new King of England.
William's enemy was the King of France, Louis XIV.