 Complete the following phrase:  William was the only child of William II, Prince of Orange, and Mary, Princess Royal and Princess of Orange, the daughter of Charles I of England, Scotland, and Ireland. His father died a week before his birth, making William III the Prince of Orange from birth. In 1677, he married Mary, the eldest daughter of his maternal uncle James, Duke of York, the younger brother of Charles II of England, Scotland, and Ireland. The Protestant William participated in several wars against the powerful Catholic French ruler Louis XIV in coalition with both Protestant and Catholic powers in Europe. Many Protestants heralded William as a champion of their faith. In 1685, his Catholic uncle and father-in-law, James, became king of England, Scotland, and Ireland. Jamess reign was unpopular with the Protestant majority in Britain, who feared a revival of Catholicism. Supported by a group of influential British political and religious leaders, William invaded England in what became known as the 