Anne Isabella Noel Byron, 11th Baroness Wentworth and Baroness Byron (née Milbanke; 17 May 1792 – 16 May 1860), nicknamed Annabella and commonly known as Lady Byron, was an educational reformer and philanthropist who established the first industrial school in England, and was an active abolitionist. She married the poet George Gordon Byron, more commonly known as Lord Byron, and separated from him after less than a year, keeping their daughter Ada Lovelace in her custody despite laws at the time giving fathers sole custody of children.
https://en.wikipedia.org/wiki/Lady_Byron