https://en.wikipedia.org/wiki/Mary_of_Modena
Maria Beatrice d'Este, the second (but eldest surviving) child of Alfonso IV, Duke of Modena, and his wife, Laura Martinozzi, was born on 5 October 1658 NS in Modena, Duchy of Modena, Italy.Her only younger brother, Francesco, succeeded their father as Duke upon the latter's death in 1662, the year Mary turned four. Mary and Francesco's mother, Laura, was strict with them …