Original sentence: In later years with even Nico grown, Sir James endures loneliness, taking some measure of enjoyment with the young son of his new secretary Cynthia Asquist (Sheila Ruskin)
Edited sentence: In later years with even Nico grown, Sir James endures loneliness, taking some measure of enjoyment with the young son of his secretary, Lady Cynthia Asquith (Sheila Ruskin)