Marie Salmon
👁 Portrait of Marie Salmon in 1786 Portrait of Marie Salmon in 1786
Born	Marie Françoise Victoire Salmon c. 1760[a] Méautis, Normandy, Kingdom of France
Died	2 May 1827(1827-05-02) (aged 67)
Occupation	Domestic servant
Known for	Wrongful poisoning conviction and exoneration

Marie Françoise Victoire Salmon (c. 1760^[a] – 2 May 1827) was a French domestic servant in the Kingdom of France who was wrongfully convicted of fatally poisoning her employer and was condemned to be tortured and burned alive in 1782. After narrowly avoiding execution, she was fully acquitted of all charges in 1786 with the help of the lawyers Pierre Noël Lecauchois and Jean-François Fournel, who argued her innocence through a series of widely-circulated legal briefs that exposed a flawed criminal investigation and garnered public sympathy and support.

Salmon's exoneration was celebrated throughout France, elevating her to a celebrity status and earning her invitations from high society, including from Marie Antoinette and Madame de Genlis. Her story became a popular symbol of the harsh and unfair criminal justice system of the ancien régime.

Born in 1760,^[a] Marie François Victoire Salmon was the daughter of a day laborer in Méautis, Normandy.^[1] When she was young, a pig attacked her and permanently disabled her left hand, leaving her unable to fully open that hand.^[2] At 15, after her mother died and her father remarried, she left home to seek employment as a domestic servant.^[2]

In 1781, a parish priest attempted to rape Salmon; he was caught and convicted, but quickly released.^[3] A magistrate named Roland Revel de Bretteville, who knew her through her employer, suggested that she protect herself from the priest by moving to Caen, where he offered her a job in his household.^[3] However, Salmon believed that Revel was trying to seduce her, so she found work as a domestic servant for the Huet-Duparc family in Caen instead.^[3][4]

The Huet-Duparcs were a petit-bourgeois family consisting of Madame Duparc, her husband, three children, and two grandparents.^[5] Marie Salmon's duties for the household included preparing simple porridge meals for the 88-year old grandfather, Paysant de Beaulieu.^[6] According to Salmon, Madame Duparc gave her specific instructions for preparing Beaulieu's meals.^[7] However, on 6 August 1781, after Salmon had only been employed for 5 days, Madame Duparc interrupted Salmon's meal preparations and sprinkled salt into Beaulieu's porridge, even though Duparc had previously told her to never add salt.^[7]

Within hours of eating his porridge, Beaulieu became violently ill, vomiting and convulsing.^[8] Marie Salmon sat by his sick bed and cared for him as he continued to worsen, while Madame Duparc told her son to ride out of town to inform his father of Beaulieu's condition.^[9]

Paysant de Beaulieu died that same evening on 6 August 1781.^[10]

The following day on 7 August, while Marie Salmon completed her duties and rested, Madame Duparc and her daughter prepared two separate soups: one for the family made with fresh broth and the other for Salmon and the housekeeper made from the previous day's broth.^[11] Later, Salmon helped serve the soup with new broth to the Duparc family and their dinner guests, and then she went to the kitchen to eat her own bowl.^[12]

Shortly after eating their soup, the Duparcs and their guests complained of stomach pains, and Madame Duparc declared that she smelled burned arsenic in the kitchen.^[13] People became frantic, with a guest crying out "NOUS SOMMES TOUS EMPOISONNÉS!" [emphasis in source] (transl. "We are all poisoned!")^[13]

News spread throughout the city, and neighbors gathered at the Duparc home to investigate the commotion.^[14] After seeing the frenzied state of the Duparc family, who continued to insist that they had been poisoned, observers called for the authorities to arrest Marie Salmon.^[15]

The Procureur du Roi (transl. King's Prosecutor) in the baillage court of Caen, Roland Revel de Bretteville, whom Salmon had left a few weeks earlier after she had declined his assistance, was assigned to investigate the case.^[3] After conducting what would later be argued was a prejudiced and flawed investigation fueled by personal animus, Revel sought the death penalty for Salmon.^[3]

👁 A drawing of Marie Salmon marching to her execution from Histoire des bagnes (1878) by Pierre Zaccone.

On 18 April 1782, the baillage court of Caen found Marie Salmon guilty of poisoning, murder, and theft.^[17] She was "condemned to be tortured for the names of possible accomplices, to beg forgiveness in public barefoot and carrying a torch, and to be burned at the stake."^[17] The execution would take place in Saint Sauveur square.^[10]

On 30 May 1782, the day of her execution, Marie Salmon suddenly fainted and then declared she was pregnant.^[18] The execution was delayed while two midwives were summoned to examine her.^[19] However, because the midwives could not definitively determine if she was pregnant at that time, Salmon's execution was further postponed for two months, as the criminal code of the ancien régime stipulated that the execution of a pregnant woman should be delayed until after the birth of her child.^[18][19]

During this delay, two confessors who had spoken to Marie Salmon in prison wrote to a regionally famous lawyer from Rouen named Pierre Noël Lecauchois, asking him to reexamine her case.^[18][19] Lecauchois took on the case, along with his Parisian colleague Jean-François Fournel, and immediately instructed Salmon's confessors to file an official request to review the trial.^[19] He then sought and was granted a stay of execution from the king just days before Marie Salmon was scheduled to be reexamined for pregnancy and possibly executed.^[18]

👁 Engraving of Pierre Lecauchois by Cathelin and Noireterre.

As part of their efforts to reverse Marie Salmon's conviction, Salmon's lawyers Pierre Lecauchois and Jean-François Fournel wrote three mémoires judiciaires (transl. legal briefs) to argue Salmon's innocence and published them for the general public. Lecauchois wrote Justification de Marie-Françoise-Victoire Salmon and Addition à la Justification de Marie-Françoise-Victoire Salmon, and Fournel wrote Consultation pour une jeune fille condamnée à être brûlée vive. The briefs were printed by Parisian publisher André-Charles Cailleau.^[20][21]

Lecauchois opened Justification by recalling past victims of the unjust criminal code:

Ghosts of LeBrun, of the Danglades and Forrés, join that of the unfortunate Calas. …Bring forth your grief-stricken, ruined families, uncover your bloody-corpses, some cruelly mangled by torture and mutilated on the gallows, others crushed with blows, crawling, expiring on the galleys.^[22]

The lawyers' goal in circulating these legal briefs was to sway public opinion in support of Salmon's innocence while also connecting her unjust victimization by the criminal justice system to the broader movement for judicial reforms at the time.^[23][24] In their briefs, they presented the rules of evidence and judicial process, challenging their audience of laypersons to judge the circumstances for themselves, while also providing an emotionally compelling first-person narrative from Salmon's perspective to "play up [her] candor and vulnerability."^[24] As Salmon narrates her story, "the reader is not allowed to forget for long that she is young, tender-hearted, and easily alluring."^[4]

👁 An engraving prepared for Madame de Genlis that dramatizes the court's recognition of Marie Salmon's innocence.

Both Pierre Lecauchois and Jean-François Fournel raised issues with the investigation conducted by the prosecutor Roland Revel de Bretteville.^[3][26]

In Justification, Lecauchois accused Revel of deliberately conducting a hasty and flawed investigation.^[3] Lecauchois argued that Revel collected evidence days after the alleged crime, placed unfair weight on Madame Duparc's testimony against Salmon, neglected to interview key persons of interest such as Madame Duparc's son, and did not consider testimonies that Salmon provided in her own defense.^[3][10]

In Consultation, Fournel described the past relationship that Revel had with Salmon shortly before her employment at the Duparc household, in which Revel tried to persuade her to move to Caen.^[27] According to Fournel, Revel held a deep grudge against Salmon after she had declined his invitation:

Ce même sieur Revel, changé tout-à-coup en adversaire implacable, attiser lui-même le bûcher qui devoit consumer son ancienne protégée : onne pourra méconnoître [sic] le caractère d'un ressentiment aussi profond que secret.

This same Mr. Revel suddenly transformed into a relentless adversary, stoking the pyre that was to consume his former protégée. One cannot fail to recognize the character of a resentment as profound as it was secret.^[27]

While Fournel alludes to the "secret" nature of Revel's profound resentment by describing Salmon's beauty and youthfulness alongside Revel's initial "effusion" of benevolence,^[27] modern historians Hans-Jürgen Lüsebrink [de] and Sarah Maza state it plainly: Revel felt spurned after Salmon rejected his sexual advances.^[3][4]

Lecauchois argued that the police, surgeon, and lawyer who arrived at the Duparc home to investigate Beaulieu's death readily accepted the Duparc family's accusations against Salmon and possibly even planted evidence against her.^[28] In one example, Lecauchois pointed out that when Marie Salmon was searched, a shiny white substance, believed to be poison, was found in her left pocket, but, notably, she never used that pocket because her left hand had been disabled since childhood (see Early life).^[29] In Consultation, Fournel directly accused the Duparc family of framing Marie Salmon for the murder of Beaulieu.^[30]

Lecauchois also argued that Salmon did not have any motive to poison Beaulieu or anyone in the Duparc household. He noted that she did not know the Duparc family prior to working for them, and she had only spoken highly of her employment in the household prior to the Beaulieu's sudden illness and death.^[31] Furthermore, he pointed out that she maintained the composure of an innocent person by quickly consenting to searches and agreeing to appear before the king's prosecutor.^[32] The Duparc family, by comparison, behaved very differently. According to Salmon, the family did not grieve for Beaulieu; rather, they seemed "relieved" that he was dead.^[28]

Lecauchois and Fournel's arguments were successful in winning Marie Salmon's freedom. On 23 May 1786, after over four years in prison, Salmon was fully acquitted of all charges.^[10] A large crowd waited outside the gates of Palais de Justice in Paris to cheer for Marie Salmon and her lawyers Pierre Lecauchois and Jean-François Fournel as they emerged.^[33] A witness and prolific journaler Siméon-Prosper Hardy wrote about this moment:

Toutes les personnes qui assistent à cette scène attendrissante, ont peine à contenir leurs larmes de joie, et s'en entretenoient encore après avec une sorte de transport.

Everyone who witnessed this touching scene could barely hold back tears of joy, and they continued to talk about it afterwards with a kind of excitement.^[34]

Afterwards, Salmon and Lecauchois had dinner at the home of their printer André-Charles Cailleau.^[35] Hardy went to Cailleau's home and wrote that he witnessed crowds gathered in the street outside to watch Salmon through the first-floor windows.^[35]

👁 Portrait engraving of Marie Salmon entitled "L'INNOCENCE RECONNUE"

In the months following Marie Salmon's exoneration, she and her lawyer Pierre Lecauchois were invited to meet with nobility and celebrities, who bestowed generous gifts.^[36][37]

King Louis XVI and Queen Marie Antionette held a private audience with Salmon and Lecauchois, in which they presented Salmon with a valuable wallet of coins.^[38] Hardy wrote that the gift from the royal couple included 25 Louis d'or and a lifetime pension of 300 livres.^[39]

Salmon and her lawyer also met Madame de Genlis and the princes of the House of Orléans. Lecauchois was so moved by their meeting that he published a manuscript entitled Détail sur la fille Salmon (transl. Detail about the Salmon girl) describing the scene.^[40] He wrote that Genlis and Salmon's arms were intertwined on the couch as the princes hugged and kissed Salmon, and he lamented that he could not capture the moment in a painting.^[40][41] Lecauchois shared a note he received from Genlis:

Je vous supplie de dire à Marie Salmon qu'elle a laissé dans mon cœur une impression profonde ; et que je goûterai un bonheur inexprimable, en contribuant à la dédommager des maux affreux qu'elle a soufferts.

I beg you to tell Marie Salmon that she has left a deep impression on my heart; and that I will feel immense happiness by helping to compensate her for the terrible suffering she has endured.^[42]

In his Détail sur la fille Salmon, Lecauchois also wrote about an audience with "Mr de Cagliostro",^[41] the same Italian charlatan and occultist who was imprisoned for nine months in the Bastille during the Affair of the Diamond Necklace.^[43] Cagliostro ordered that his portrait be gifted to Salmon, and he promised that he would have Lecauchois' legal briefs about Salmon's case translated into English.^[41][b]

Salmon also received a sum of money from the Archbishop of Paris.^[39]

On 8 June, Marie Salmon and Lecauchois were invited to performances at the Comédie Française and were directed to sit in the balcony, where they were applauded by the actors and audience.^[44]

In an August 1786 edition of his newspaper Journal encyclopédique [fr], Pierre Rousseau wrote about "un trait de bienfaisance" (transl. benevolent act) by Salmon. While Salmon was in prison, she had befriended a woman who was imprisoned with her 20-month-old child, and, when that woman died, Salmon continued to care for the child inside the prison.^[45] After she was acquitted, Salmon and Pierre Lecauchois took the child to the Hôpital des Enfants-Trouvés and asked the priests to care for him there.^[45] The child was baptized and named Pierre Noël Daniel Innocent Moreau^[39] in a ceremony before 1200 people.^[45]

👁 A fan with illustrations of Marie Salmon and Lecauchois on one side, and Cagliostro on the other.

Tributes in the form of engravings circulated in periodicals throughout France, celebrating Marie Salmon's exoneration as "L'INNOCENCE RECONNUE" (transl. Innocence Recognized).^[38]

Other art forms honoring Salmon, including numerous songs, became popular with the illiterate Parisian public.^[38] The French libretist and actor Desforges wrote a ballad about her ordeal, sung to the tune of Richard Cœur de Lion.^[38][46] The first two stanzas are as follows:

Une jeune innocente Languissait dans les fers, Seule dans l'univers, Contre une main puissante ; Gens indiscrets, d'accord entr'eux, Ont supposé crimes affreux : Poison, vol domestique, Crioient ses ennemis : Pauvre fille rustique Les aurais-tu commis ? Victoire est ingénue, Dans son œil vif et noir Il est aisé de voir Son âme toute nue ; Son langage est comme son cœur, Simple, naïf, plein de candeur : Sa naissance est commune ; Victoire, en rougis-tu ? Non; vertu sans fortune, Vaut mieux qu'or sans vertu.[47]

An innocent young girl Languished in chains, Alone in the world, Against a powerful hand; Indiscreet people, agreeing together, Suspected horrible crimes: Poison, domestic theft, Cried her enemies: Poor country girl Would you have committed them? Victoire is innocent, In her bright black eye It is easy to see Her soul laid bare; Her speech is like her heart, Simple, naive, full of candor: Her birth is common; Victoire, are you embarrassed by it? No; virtue without fortune, Is better than gold without virtue.

👁 Marriage announcement for Marie Salmon and "Mr. Savari"

On 26 August 1786, a few months after she was exonerated, Marie Salmon married a 28-year-old infantry soldier from Lorraine named Jean-Louis Savary at the Church of Saint Severin.^[48][49] This church stood before the same square where Salmon was originally condemned to be burned alive in 1782.^[10] The wedding ceremony was so popular, with people climbing onto the pews and railings, that soldiers were called to manage the crowds.^[50]

The marriage was arranged by Madame de Genlis, because she remembered that Lecauchois had previously helped exonerate Jean-Louis Savary^[40][51] after he had been accused of kidnapping and theft several years earlier.^[52] Both Salmon and Savary consented to the marriage.^[51]

The House of Orléans provided the carriage that drove Marie Salmon to the church for the ceremony,^[50] and the Duchess of Orléans gifted the newlyweds a trousseau of eight or nine thousand livres.^[53] Savary was also given a post at one of the castles of the Duke of Orléans.^[50][51]

Marie Salmon died on 2 May 1827 at the age of 67, surrounded by her family.^[54] Her husband had died several years earlier in 1813.^[55]

👁 Allegorical illustration of a procession of citizens carrying a coffin and celebrating the end of the "Lord of Abuses"

Marie Salmon's wrongful conviction, in which she was nearly tortured and burned at the stake for a crime she did not commit, became a symbol of the harsh criminal justice system of the ancien régime.^[56][57] Despite calls to meaningfully reform this system, many reforms prior to the French Revolution were "mostly symbolically charged measures… that cost little, politically, but looked good."^[58]

One allegorical engraving by Jean Marie Mixelle [fr] and Sergent-Marceau dated 4 May 1789 shows the statesman Jacques Necker in a procession of citizens from all corners of French society, celebrating the death of the "Lord of Abuses" and carrying a coffin with symbols of each of the three estates on top.^[56] Leading the procession are famous victims of injustice, identified by their names written on their backs. Marie Salmon is drawn walking beside Jean Calas,^[56] who was tortured and executed on the wheel in 1762.^[59] Necker had abolished the practice of torturing the accused for confessions in 1780.^[58] The practice of torturing the convicted for the names of accomplices, which would have been Salmon's fate were it not for the intervention of her lawyers, was abolished in 1788.^[58]

Mixelle and Sergent-Marceau's engraving is dated the day before the last Estates General of the Kingdom of France was called on 5 May 1789. At the conclusion of the final Estates General of 1789, the National Assembly was formed, and the French Revolution began.^[60]

• "L'Affaire Salmon". Les Archives de Calvados (in French). Retrieved 20 January 2026.
• "ANNÉE 1786" [YEAR 1786]. L'Année littéraire: ou, suite des lettres sur quelques écrits de ce temps [The Literary Year: or, a collection of letters on some writing of this time] (in French). Genève: Slatkine Reprints (published 1966): 586 (original folio pages 158–161). 1786 – via HathiTrust.
• Binet, Louis; Patas, Charles Emmanuel (1786), L'Innocence reconnue... [Innocence Recognized...], retrieved 3 February 2026 – via BnF
• Britannica Editors (ed.). "Alessandro, count di Cagliostro". Encyclopedia Britannica. Retrieved 26 February 2026.
• Célébrités diverses : mariage, à Saint-Séverin, de Jean-Louis Savary, soldat au Lorraine-infanterie, avec Marie-Françoise-Anne Salmon (26 août 1786) [Various celebrities: marriage, in Saint-Séverin, of Jean-Louis Savary, a soldier in the Lorraine infantry, with Marie-Françoise-Anne Salmon (August 26, 1786)] (Manuscript), Collection Parent de Rosan, Charles-Félix (1798-1890) (in French), Paris, BHVP Identifier 8-MS-FS-06-82 – via BHVP
• Chisholm, Hugh, ed. (1911). "Calas, Jean" . Encyclopædia Britannica (11th ed.). Cambridge University Press.
• Fournel, Jean-François (1786). Consultation pour une jeune fille condamnée à être brûlée vive [Consultation for a young girl condemned to be burned alive] (in French). Paris: Cailleau – via Google Books.
• Hardy, Siméon-Prosper (2023) [1786]. Bastien, Pascal; Juratic, Sabine; Lyon-Caen, Nicolas; Roche, Daniel; Luckett, Thomas M. (eds.). Mes Loisirs, ou Journal d’événemens tels qu’ils parviennent à ma connoissance (1753-1789) [My Leisure Activities, or Journal of events as they come to my knowledge (1753-1789)] (in French). Vol. 9. Hermann. doi:10.3917/herm.hardy.2023.01. ISBN 979-10-370-3168-6.
• Lecauchois, Pierre Noël (1786). Justification de Marie-François Victoire Salmon Par Me. Lecauchois, Avocat au Parlement de Rouen [Justification of Marie-François Victoire Salmon, by Mr. Lecauchois, Attorney at the Parliament of Rouen] (in French). Paris: Cailleau – via Internet Archive.
• Le Corbeiller, Armand (1927). Le long martyre de Françoise Salmon [The long martyrdom of Françoise Salmon]. Nouvelle collection historique (in French) (5e édition ed.). Paris: Perrin et Cie – via BnF.
• Lüsebrink, Hans-Jürgen (1993). "L'innocence persécutée et ses avocats. Rhétorique et impact public du discours « sensible » dans la France du XVIIIe siècle" [Persecuted Innocence and its Lawyers: Rhetoric and Public Impact of "Sentimental" Discourse in 18th-century France.]. Revue d’Histoire Moderne & Contemporaine [Review of Modern and Contemporary History]. 40 (1): 86–101. doi:10.3406/rhmc.1993.1661 – via Persée.
• Maza, Sarah (1993). Private Lives and Public Affairs: The Causes Célèbres of Prerevolutionary France (1st ed.). Berkeley, Calif: University of California Press. ISBN 978-0520081444 – via Google Books.
• Maza, Sarah (1998). "The Theater of Punishment Melodrama and Judicial Reform in Prerevolutionary France". In Melzer, Sarah E.; Norberg, Kathryn (eds.). From the Royal to the Republican Body: Incorporating the Political in Seventeenth- and Eighteenth-Century France. Berkeley, Calif: University of California Press. ISBN 978-0520208070 – via CDL.
• Mixelle, Jean Marie (1789), Convoy de très haut et très puissant seigneur des abus... [Procession of a very high and powerful lord of abuses...], retrieved 3 February 2026 – via Paris Musées
• Rousseau, Pierre (1786). "Notice d'une cause fort remarquable, des divers jugemens qui l'ont décidée... (AOUT 1786)" [Account of a very remarkable case, and the various judgments that decided it... (August 1786)]. Journal encyclopédique (in French). 62. Genève: Slatkine Reprints (published 1967): 137–139 – via HathiTrust.
• Service éducatif des Archives de la Manche, ed. (1 September 2015). "L'innocence reconnue est Marie Françoise Victoire Salmon (Méautis, Caen, Paris, 1786)" [The recognized innocent is Marie Françoise Victoire Salmon (Méautis, Caen, Paris, 1786)]. Didac'doc (PDF) (in French) (61). Archived from the original on 1 March 2026. Retrieved 1 March 2026 – via Archives départementales de la Manche.
• "Summoning of the Estates General, 1789". Palace of Versailles. 23 August 2018. Archived from the original on 23 June 2023. Retrieved 3 February 2026.
• Zaccone, Pierre (1878). Histoire des bagnes, depuis leur création jusqu'à nos jours [The history of penal colonies, from their creation to the present day.] (in French). p. 145 – via BnF.

👁 Wikimedia Commons logo
Media related to Marie Salmon at Wikimedia Commons

• Photographs of court manuscripts from 1782 and 1786, including the original judgement against Marie Salmon, written in French script, and provided by Les Archives de Calvados with the archival identifier F/6378

• Collins, Wilkie. "CASES WORTH LOOKING AT.—II.". THE POISONED MEAL – via Project Gutenberg.
• Méjan, Maurice (1809). Recueil des causes célèbres et des arrêts qui les ont décidées [Collection of famous cases and the judgments that decided them.] (in French). Vol. 5. Paris – via BnF.

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