Two women, especially, made themselves notorious at this time, and were instrumental to the deaths of hundreds of individuals. They both resided in Paris, and were named Lavoisin and Lavigoreux. Like Spara and Tophania, of whom they were imitators, they chiefly sold their poisons to women who wanted to get rid of their husbands; and, in some few instances, to husbands who wanted to get rid of their wives. Their ostensible occupation was that of midwives. They also pretended to be fortune-tellers, and were visited by persons of every class of society. The rich and poor thronged alike to their mansardes to learn the secrets of the future. Their prophecies were principally of death. They foretold to women the approaching dissolution of husbands, and to needy heirs the end of rich relatives, who had made them, as Byron expresses it, "wait too, too long already." They generally took care to be instrumental in fulfilling their own predictions. They used to tell their wretched employers that some sign of the approaching death would take place in the house, such as the breaking of glass or china; and they paid servants considerable fees to cause a breakage, as if by accident, exactly at the appointed time. Their occupation as midwives made them acquainted with the secrets of many families, which they afterwards turned to dreadful account.
It is not known how long they had carried on this awful trade before they were discovered. Detection finally overtook them at the close of the year 1679. They were both tried, found guilty, and burned alive on the Place de Grève, on the 22d of February, 1680, after their hands had been bored through with a red-hot iron, and then cut off. Their numerous accomplices in Paris and in the provinces were also discovered and brought to trial. According to some authors, thirty, and to others, fifty of them, chiefly women, were hanged in the principal cities.
Lavoisin kept a list of the visitors who came to her house to purchase poisons. This paper was seized by the police on her arrest, and examined by the tribunals. Among the names were found those of the Marshal de Luxembourg, the Countess de Soissons, and the Duchess de Bouillon. The marshal seems only to have been guilty of a piece of discreditable folly in visiting a woman of this description, but the popular voice at the time imputed to him something more than folly. The author of the Memoirs of the Affairs of Europe since the Peace of Utrecht, says, "The miserable gang who dealt in poison and prophecy alleged that he had sold himself to the devil, and that a young girl of the name of Dupin had been poisoned by his means. Among other stories, they said he had made a contract with the devil, in order to marry his son to the daughter of the Marquis
