Elizabeth Cecil, 16th Baroness de Ros was the daughter of a man that was the son of who?
Elizabeth Cecil, 16th Baroness de Ros Lady Elizabeth Manners, 16th Baroness de Ros of Helmsley ("c". January 1574/1575 – 19 May 1591) was the daughter and heir of Edward Manners, 3rd Earl of Rutland. On her father's death the Earldom of Rutland devolved upon his brother, the Barony of Ros passed to his daughter, Elizabeth.
Elizabeth Grey, 6th Baroness Lisle Elizabeth Grey, 6th Baroness Lisle (c.1482/1484 – c.1525/1526) was an English noblewoman during the reigns of Henry VII and VIII.