Elizabeth Butler, Countess of Derby

Lady Elizabeth Butler, Countess of Derby, was an English court official. She served as Mistress of the Robes to queen Mary II of England between 1689 and 1694.
She was the daughter of Thomas Butler, 6th Earl of Ossory and Emilia van Nassau-Beverweerd. She married William Stanley, 9th Earl of Derby, in 1673.
When the household of queen Mary II was officially formed, Elizabeth Butler was appointed on 22 April 1689 to the position of principal lady-in-waiting with the title Groom of the Stole and Mistress of the Robes. She was given a salary of £1200 per annum.
Following the death of her husband, she was engaged in a Chancery case with his brother and her two daughters Henrietta and Elizabeth concerning her dower.