Landgravine Marie Louise of Hesse Kassel
Landgravine Marie Louise of HesseKassel was a daughter of Charles I, Landgrave of HesseKassel, and Maria Amalia of Courland. By her marriage to John William Friso, Prince of Orange, she became Princess consort of Orange, a title last held by Mary II of England. Like her husband, she is an ancestor of all currently reigning monarchs in Europe.
Marie Louise was one of seventeen children born to Charles I, Landgrave of HesseKassel, by his wife and cousin, Maria Amalia of Courland. Two of her siblings included King Frederick I of Sweden and William VIII, Landgrave of HesseKassel.
Source: Wikipedia