William of Orange and Mary II were proclaimed joint sovereigns of Britain on February 13, 1689, after King James II had fled to France as a result of the "Glorious Revolution" in England.
They were later crowned on April 11, 1689.On April 4, 1689 he also became King William II of Scotland. He ruled jointly with his wife, Mary II, until her death in 1694, after which he ruled as sole monarch.