Born in Grenoble in 1732 as Anne, the future Jean-Baptiste Grandjean was raised in the female role until early adolescence. When a same-sex attraction emerged, the family turned to a local confessor, who, unable to reconcile the desire with prevailing doctrine, ordered a gender reassignment. By 1746, at fourteen, Grandjean was clothed and treated as a boy, a change that was later recorded in an official act of emancipation naming him Jean-Baptiste.
Fourteen years later, in 1761, Grandjean married Françoise Lambert in Chambéry. The union proceeded without objection, and the marriage record listed Grandjean as a man. The couple moved to Lyon to seek work in the textile trade, but the marriage soon attracted unwanted attention. Lambert encountered a former lover of Grandjean who revealed that Grandjean was described in contemporary documents as an “hermaphrodite”—the period term for an intersex person. This revelation prompted Lambert to consult her own confessor, who advised her to distance herself from the marriage.
From Rumour to Royal Court: The Legal Assault
Word of a “woman hermaphrodite” marrying a woman spread through Lyon, reaching the king’s prosecutor. Grandjean was arrested, placed in a dungeon, and subjected to a forensic examination ordered by the Paris Parlement. Surgeons inspected hair, voice, breast tissue and, most crucially, the genitalia. Their report concluded that the organ Grandjean believed to be a penis was, in fact, a long clitoris, and declared the individual anatomically female. The medical opinion became the cornerstone of the criminal charge: abuse of the sacrament of marriage by a person presenting as male.
On 20 October 1764, the court sentenced Grandjean to three days of public humiliation on the pillory, a flogging by the executioner’s hand, and perpetual banishment. The condemned had to proclaim his guilt aloud, asking forgiveness from God, the king and the law. Grandjean’s counsel, the avocat François-Michel Vermeil, appealed, arguing that Grandjean had sincerely believed himself to be male, a belief shaped by earlier religious guidance.
Reversal, Restrictions and Historical Echoes
On 10 January 1765, the Paris Parlement overturned the corporal punishment and the exile, but it upheld a set of intrusive mandates: Grandjean was ordered to resume wearing women’s clothing, was forbidden to see Lambert again, and the marriage was declared void. The decision illustrates how the court could rescind the harshest penalties while retaining control over personal identity and relationships.
Historical records after the 1765 decree disappear, leaving Grandjean’s later life unknown. Scholars such as Mathieu Laflamme and René Favier have used the surviving trial files to highlight the case as one of the most thoroughly documented instances of intersex prosecution in the Ancien Régime. The episode resonates with modern debates over non-consensual medical interventions on intersex children, showing a continuity in the drive to force a binary sex classification on bodies that resist simple categorisation.
By examining the interplay of religious authority, medical expertise and royal jurisprudence, the Grandjean case reveals the limits of 18th-century French institutions in accommodating gender diversity. While the Parlement’s reversal spared Grandjean from corporal punishment, the lingering edicts underscore a persistent desire to dictate appearance and intimate relations, a legacy that still informs contemporary discussions about bodily autonomy.
