Gwendolen Florence Mary Guinness, Countess of Iveagh was an Anglo-Irish aristocrat and Conservative politician. She was, by marriage, a member of the Guinness brewing dynasty. Wikipedia
Born: July 22, 1881
Died: February 16, 1966 (age 84 years)
Great grandchildren: Edward Guinness, 4th Earl of Iveagh, Lady Charlotte Wellesley, Arthur Wellesley, Marquess of Douro, and more
Parents: William Onslow, 4th Earl of Onslow
Great-grandparents: Susannah Elizabeth Hiller, Thomas Cranley Onslow, William Fraser Bentinck Loftus, and more