Lady Susan Maria O'Brien (died 1857) (d. 1857) Parents William O'Brien, 2nd Marquess of Thomond Elizabeth Trotter Children Susan Frances Hotham Charles Hotham, 4th Baron Hotham of South Dalton Beaumont Hotham John Hotham, 5th Baron Hotham of South Dalton Siblings Lady Elisabeth O'Brien Lady Mary O'Brien Lady Sarah O'Brien Partners George Frederick Hotham