Elizabeth Cecil, 16th Baroness de Ros was the daughter of a man that was the son of who?
Elizabeth Cecil, 16th Baroness de Ros:  January 1574/1575 – 19 May 1591) was the daughter and heir of Edward Manners, 3rd Earl of Rutland. Edward Manners, 3rd Earl of Rutland: Edward Manners, 3rd Earl of Rutland, 14th Baron de Ros of Helmsley, KG (12 July 1549 – 14 April 1587) was the son of Henry Manners, 2nd Earl of Rutland, whose titles he inherited in 1563.
Henry Manners