Lord Byron additional surname "Gordon", becoming "John Byron Gordon", and he was occasionally styled "John Byron Gordon of Gight." Byron himself used this surname for a time and was registered at school in Aberdeen as "George Byron Gordon." At the age of 10 he inherited the English Barony of Byron of Rochdale, becoming "Lord Byron", and eventually dropped the double surname. Byron's paternal grandparents were Vice-Admiral the Hon. John "Foulweather Jack" Byron, and Sophia Trevanion. Vice Admiral John Byron had circumnavigated the globe and was the younger brother of the 5th Baron Byron, known as "the Wicked Lord". He was christened at
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