Madeleine Smith (1835–1928) was the accused in one of the most notorious poisoning trials of the nineteenth century. She was charged with murdering her secret fiancé and lover, Emile L'Angelier, in 1857. The nation was scandalized by her sexual freedom revealed in the content of her love letters, which were read out in court in the course of the trial, and her deception of her father. Notwithstanding this the jury returned a verdict of ‘Not Proven’.
From The New Oxford Companion to Law in Oxford Reference.