Question: Elizabeth Cecil, 16th Baroness de Ros was the daughter of a man that was the son of who?
Sentence (from "Mary Stewart, Duchess of Richmond"): Mary Stewart, Duchess of Richmond and Duchess of Lennox (1622–1685), formerly Lady Mary Villiers, was the daughter of the George Villiers, 1st Duke of Buckingham and Katherine Manners, 19th Baroness de Ros.
Relevant evidence: No