John Joseph Knight, Dictionary of National Biography… (1887)
“ As the Lady Contemplation in the play of that name, as the Lady Chastity of the ‘Matrimonial Trouble,’ and in a score other characters, the duchess is recognisable. Not seldom the speeches assigned the characters in her plays are as scholastic and as voluminous as her letters or her philosophical opinions. She does not hesitate to introduce wanton characters and to employ language which goes beyond coarseness. Her philosophy is the dead weight which drags her to the ground. ”
