William Byron, 5th Baron Byron William Byron, 5th Baron Byron William Byron, 5th Baron Byron (5 November 1722 – 19 May 1798), was a British nobleman, peer, politician, and great uncle of the poet George Gordon Byron, 6th Baron Byron who succeeded him . As a result of a number of stories that arose after a duel, and then because of his financial difficulties, he became known as "the Wicked Lord" and "the Devil Byron". Byron was the son of William Byron, 4th Baron Byron and his wife Hon. Frances Berkeley, a descendant of John Berkeley, 1st Baron Berkeley of Stratton. He inherited his title
Lord Byron Nottingham, Newstead Abbey." Augusta Leigh's child, Elizabeth Medora Leigh, born 1814, was very likely fathered by Byron, who was Augusta's half-brother. Byron had a child, The Hon. Augusta Ada Byron ("Ada", later Countess of Lovelace), in 1815, by his wife Annabella Byron, Lady Byron ("née" Anne Isabella Milbanke, or "Annabella"), later Lady Wentworth. Ada Lovelace, notable in her own right, collaborated with Charles Babbage on the analytical engine, a predecessor to modern computers. She is recognised as the world's first computer programmer. He also had an illegitimate child in 1817, Clara Allegra Byron, with Claire Clairmont, stepsister of Mary Shelley