Ada Lovelace died at the age of thirty-ninesix, on 0127 November 1852,<ref>GRO Register of Deaths: December 1852 1a * MARYLEBONE – Augusta Ada Lovelace</ref> from [[uterine cancer]] probably exacerbated by [[bloodletting]] by her physicians.<ref>Baum 1986 pp. 99–100</ref> The illness lasted several months, in which time Annabella would take command over who Ada saw, and excluded all of her friends and confidants. Under her mother’s influence, she had a religious transformation (after previously being a [[materialist]]) <ref>Woolley, pp. 361–362</ref> and was coaxed into repenting of her previous conduct and making Annabella her executor.<ref>Woolley, p. 370</ref> Contact was lost with her husband after she confessed something to him on 30 August, causing him to abandon her bedside; what she told him is not known but has been theorised as a confession of adultery.<ref>Woolley, p. 369</ref>
She was buried, at her request, next to her father at the [[Church of St. Mary Magdalene, Hucknall|Church of St. Mary Magdalene]] in [[Hucknall]], [[Nottingham]].
