m. 13 Jun 1625
Facts and Events
Mary, Princess Royal (Mary Henrietta; 4 November 1631 – 24 December 1660) was Princess of Orange and Countess of Nassau as the wife of Prince William II. She was the eldest daughter of King Charles I of England, Scotland, and Ireland and his wife, Henrietta Maria of France. Her only child later reigned as King William III of England and Ireland and II of Scotland.
Mary was the first daughter of a British sovereign to hold the title Princess Royal. She was co-regent for her son as Sovereign Prince of Orange from 1651 to 1660.