Anne Isabella Byron, Baroness Byron

Anne Isabella Noel Byron, 11th Baroness Wentworth and Baroness Byron (17 May 1792 – 16 May 1860), nicknamed Annabella, was the wife of poet George Gordon Byron, more commonly known as Lord Byron.

A highly educated and strictly religious woman, she seemed an unlikely match for the amoral and agnostic poet, and their marriage soon ended in acrimony. Lady Byron’s reminiscences, published after her death by Harriet Beecher Stowe, revealed her fears about an alleged incest Lord Byron had with his half-sister. The disclosure of Lady Byron's suspicions ultimately prompted Byron to leave England.