“Easy to make and impossible to detect, since it is tasteless and the color of water.” In one of the first descriptions of the Rome poison scare from the trial perspective, Cardinal Francesco Sforza Pallavicino described the liquid less as chemistry than as danger: ‘a transparent liquid handed from hand to hand among women, with husbands as the final destination.
The name that would eventually be associated with the legend, Aqua Tofana, still had the clean effect of a trademark. But the most interesting part of the legend is not the trademark, but the packaging, which was a fairly common container that would have been found on a dressing table. In the Italy of the seventeenth century, where marriage could become a legal and economic trap, this was significant. The wife was expected to manage remedies, cosmetics, and the food of the day. The same domestic power that made a woman a caregiver also made it possible to do harm.
In the versions that revolve around Giulia Tofana, the business that pretended to be a trade in the beauty of women was a cover for a colorless, odorless poison, which was often a combination of arsenic and other poisons, and was distributed to customers based on trust and referral. The poison was sold as “Manna of St Nicholas of Bari,” which was a known healing oil, or as a cosmetic that would eliminate facial blemishes. This was more than a clever cover to deflect attention; it was the injection of violence into the domestic sphere, where a box of salve would not raise an eyebrow.
What was so intriguing about the legend was the process. Rather than a single dramatic dose, Aqua Tofana was a “slow poison,” taken in doses. First, there was weakness and illness; then spasms, nausea, and dysentery; then, after a third or fourth dose, death. To the neighbors and the doctors, the symptoms were those of the common illnesses of the time. This was the mechanism of the crime, and the secret of its legend, since it implied a murder that could be confused with nature. The legend of the discovery is based on a domestic detail: a bowl of soup and the interruption of conscience, panic, or fear. There was also a variant in which a client attempted to poison her husband but then begged him not to eat; the confession exposed the offender. Another tradition, heard early, was the woman’s confession to her priest. In either case, the broader warning was social as well as medical an anxious observation that “young widows were unusually abundant” and the crackdown cemented the legend into the group memory of Rome.
Subsequent printings increased the numbers, the scope of the conspiracy, and the eerie specificity of the poison. The most frequently cited number 600 victims was also true simply because it was difficult to verify. Confessions could be coerced, tales could be lopsided, rumor could be conflated with fact. The historiography based on transcripts of the 1659 investigation has further obscured the legend, proposing that the women tried and convicted of the manufacture and distribution of the poison may not have been the husband-killers that literary history required. Their poverty was also significant: while aristocratic patrons could be protected or discreetly punished, the women of lower social status were liable to “justice.”
Even as the truth slipped into the past, the name came into focus as a symbol of invisible death. More than a hundred years after the executions in Rome, the composer Wolfgang Amadeus Mozart, ill and frightened and searching for a cause, seized on the legend. “I am sure that I have been poisoned,” he wrote. “I cannot shake myself of this idea … Someone has given me Aqua Tofana and calculated the exact time of my death.” The name has stuck because it reveals what Aqua Tofana ultimately was: not simply a suspected poison in a bottle, but a symbol of pain that seemed to be designed, personal, and invisible.
In this way, the “blemish serum” was always at work. Even if the formula was lost, or even if it never was a specific thing in the first place, Aqua Tofana is a tale of the dangers of the private life, of how easily pain can be concealed among the things that are supposed to heal.
