The hatter had set off without his shoes. Word had just reached him that a gentleman was carrying away his child; his wife was already running in pursuit. On that seventeenth day of June 1820, between Saint-Rambert and Lyon, the banks of the Saône became the setting of a chase where every scrap of intelligence demanded a fresh detour. Laborers had caught sight of the abductor as he passed. He had taken a boat, crossed to the opposite bank, and continued on his way. Berthier pressed on until his strength failed him. Then shouts, arising near the Tilsitt Bridge, brought him back to his feet. The man was inside a café. The father burst through the door, cudgel in hand; bystanders seized his arm. The fugitive darted into the entry of an adjacent house. This time, the passage offered no escape.
The child was recovered alive. The man taken into custody had changed his stockings; he carried other garments upon his person, intended, it seemed, to disguise the little boy’s appearance. Before the police commissioner, he offered an explanation whose strangeness surpassed even that of his flight: his own child had been taken from him, and so he had taken another. He then stated his name and his office: Pierre-Claude Chevallier, deputy head of the finance bureau at the Rhône prefecture. The civil administration was not unaccustomed to administrative embarrassments, but it rarely found one of its esteemed functionaries in the grip of a barefoot hatter. The high regard Chevallier enjoyed only rendered his arrest more difficult to comprehend—and soon, far more ominous.
The judicial compendium published in 1827, to which we owe the record of this affair, proves as swift to condemn as it is to narrate; one must consult its evidentiary exhibits with far greater caution than its moral outrage. It depicts a punctilious clerk, well liked by his superiors, whose polished manners had favored his advancement. It also portrays him as a three-time widower, recently remarried. Until that moment, these successive bereavements might have passed for an extraordinary sequence of misfortunes. Following the abduction, they formed in the town’s whispering galleries a chain of events far more terrible to contemplate. Recollections resurfaced, kinfolk came forward, and physicians were questioned. A spotless reputation had shielded these deaths; no sooner did it collapse than every demise became suspect.
Prior to his marriages, Chevallier had cohabited with Jeanne Dejounk, widow Debira, a young Dutchwoman who died in Lyon. Then Étiennette Desgranges, his first wife, had perished in 1814; Marguerite Pizard, the second, in 1817; Marie Riquet, the third, in 1819. Benoîte Besson was his fourth. Under the chronicler’s pen, the deceased women are almost instantly converted into the victims of a single, calculating poisoner. The courtroom debates, however, revealed a reality far less uniformly established. Several marriage contracts contained survivor clauses, but by no means all. Lucre might well supply a motive for the prosecution; it could not suffice to explain every alliance, nor to prove every murder. The names of these women demanded something more than a tally on an indictment sheet.
A child was likewise missing. Denis-Marie-Eugène, the son of Marguerite Pizard, had been withdrawn from his boarding school by his father in early August 1819. To those who inquired after the boy, Chevallier replied that he was in excellent health, residing with an aunt in another department. Jeanne Pontannier, his godmother, persisted with her questions; so too did the maternal uncle. Following his arrest, the father advanced an entirely different story. He claimed he had taken his son to place him elsewhere, but that a fall along a treacherous path had separated them. Nightfall, his own agitation, and fruitless searching had completed the calamity. He had made no declaration to the authorities. Instead, he had returned to his desk and continued to furnish cheerful tidings of a child whom he now claimed to have lost in the dark.
The abduction of young Berthier now took on a plausible purpose: to replace the absent son, to produce a boy for those relatives who would eventually insist upon seeing him. Such was the prosecution’s theory. Yet it brought to light another anomaly: the man who allegedly sought to substitute one child for another was himself living under an assumed identity. In Lyon, the Chevallier family refused to recognize him as their kin. However much his accounts of his birth, his lineage, and his military campaigns grew in length, they failed to yield him a single relation. At last, the true Pierre-Claude Chevallier was discovered. He was alive, serving as an army officer, and had years earlier lost his papers. He was summoned to appear. Two men stood before the court bearing the exact same name; only one had the right to keep it.
The false Chevallier then requested an interview with his wife. To Benoîte Besson, he confessed his usurpation, speaking of his true family, whom he professed he had wished to spare from disgrace. At last, he gave his real name: Pierre-Étienne-Gabriel Lelièvre, born in Madrid of French parentage. Inquiries in Paris unearthed a former clerk of the Bank of France and an affair involving sixty thousand francs obtained through forged bonds. His father had assisted in reimbursing the sum; powerful protections had spared him from prosecution. Military service, desertion, and forged papers obtained in Flushing had preceded his arrival in Lyon. At trial, he disputed having forged the bonds, while acknowledging he had received the money. Behind the irreproachable civil servant stood revealed a career built on deceitful signatures.
The trial opened on December 11, 1820, before the Rhône Court of Assizes. The accused had been placed upon an elevated chair; a vast crowd pressed in to look upon him. Yet the simplest testimony was delivered by a child of three. Jean-Claude Berthier identified the man who had carried him off. He spoke of sweets, of a whistle bought for him, and of a small vial from which he had been made to drink. When asked what the vial contained, he could give it no name. The adults had suspected a narcotic intended to induce sleep; the child’s answer could not confirm the nature of the draught. Lelièvre conceded that this was indeed the infant he had taken into his arms.
Other physical exhibits seemed to promise revelation, only to fall silent. The blue stockings found upon little Berthier were shown to the woman who had nursed Eugène. She could not identify them as having belonged to the prisoner’s son. That refusal carried weight. In a courtroom convinced that every thread must inevitably converge, a witness could still leave one untied. The same rigorous caution applied to the deaths of the wives. The sudden seizures, the medicine bottles, the husband’s bedside gestures formed terrifying scenes; yet the court still had to determine what they truly proved. The memory of an agony is not, in itself, the knowledge of its cause.
Regarding Marie Riquet, the testimony was particularly damning. The nurse, Fontaine, had observed Chevallier administering a potion whose acrid taste she had sampled, and which she did not recognize as any prescribed medicine. Doctor Levrat recounted his astonishment at the patient’s swift decline. Lelièvre maintained that he had sought only to ease his wife’s suffering. Under the pressure of questioning, potassium sulfate and potassium sulfide threatened to merge into two names for a single certainty; yet they were not identical. The apothecary reported a suspicious inquiry, immediately corrected by Chevallier, but placed the incident on the day after the death. One could not transform this uncertain memory into an established purchase of poison prior to the decease.
The defense speech by Advocate Beaugeard lasted five hours. Touching upon the fate of Eugène, he rested his plea upon the absence of a corpse and the lack of material certainty. The father’s falsehoods were grave; but did they demonstrate that he had killed? Counsel implored the jurors to imagine the child returning one day to claim his father. The prosecution answered with the seamless sequence of facts: the concealed disappearance, the stranger’s child snatched away. Both advocates were eloquent; yet eloquence could not absolve the jury of its solemn responsibility. The formal questions distinguished the forgeries, each of the three poisonings, the murder of the son, and the abduction of young Berthier. Each required an independent answer.
The jury answered accordingly. They acquitted Lelièvre of the deaths of Étiennette Desgranges and Marguerite Pizard. They found him guilty of the poisoning of Marie Riquet, the premeditated murder of his son, the child abduction, and the forgeries. The court pronounced the sentence of death. Lelièvre lodged an appeal in cassation. Two negative verdicts had thus sundered the unbroken chain of villainy asserted by the prosecution. Even condemned to the scaffold, Lelièvre was not held guilty of every poisoning laid to his charge.
A subsequent discovery followed. During the proceedings, a woman from Ternay had heard mention of the missing child; she matched his description to that of a little drowned boy found on the banks of the Rhône in August 1819. An inquiry was opened. The drowned child’s clothes had been preserved, then given to the churchwarden’s grandson; the police brought them to Lyon on December 16. The judicial compendium presents this correlation as the long-awaited confirmation. Yet these garments surfaced only after the verdict. The jurors had not seen them when deciding Lelièvre’s fate. This new exhibit entered a case where judgment had already been rendered. The investigation pursued its course, while the condemned man awaited the determination of his appeal.
The appeal in cassation was rejected on January 11, 1821. On the twenty-ninth, Lelièvre was still writing to challenge his sentence; on the eve of his death, he had petitioned for a reprieve. He was led to the scaffold and executed in Lyon. The affair had begun with a father running barefoot to reclaim his son. It ended with another father, condemned for having murdered his own, after months spent altering the child’s name and dwelling place across his depositions. As for young Berthier, he had long since returned to his parents’ hearth. Amid the forged papers, the marriage settlements, and the deceitful depositions, his living presence remains the most certain truth rescued from this dark history.