William III (Dutch: Willem; 4 November 1650 – 8 March 1702), also widely known as William of Orange, was sovereign Prince of Orange from birth, Stadtholder of Holland, Zeeland, Utrecht, Gelderland and Overijssel in the Dutch Republic from 1672 and King of England, Ireland and Scotland from 1689 until his death in 1702. As King of Scotland, he is known as William II. He is sometimes informally known in Northern Ireland and Scotland as "King Billy".William inherited the principality of Orange from his father, William II, who died a week before William's birth. His mother, Mary, was the daughter of King Charles I of England. In 1677, William married his fifteen-year-old first cousin, Mary, the daughter of his maternal uncle James, Duke of York.