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Marguerite de Thibouville’s pregnancy

The Last Duel

Marguerite de Thibouville’s pregnancy was both a private uncertainty and a potentially consequential fact in the case against Jacques Le Gris. After years without a child, Marguerite became pregnant around January 1386 and gave birth later that year. The child’s paternity cannot be established from the surviving account, but the pregnancy mattered in a society where inheritance depended on recognized descent and a wife’s sexual reputation could shape a family’s standing and claims to property.

Timing and Uncertain Paternity

The pregnancy followed the first five or six years of Marguerite’s marriage to Jean de Carrouges without a child. Its timing made paternity impossible to settle from chronology alone: the child might have been Jean’s, Le Gris’s, or another man’s. The account considers Le Gris’s paternity possible, but does not present it as a known fact. Marguerite’s pregnancy and the birth later in 1386 are documented; what she or Jean privately believed about the child is not.

Jean had a possible answer to any suggestion that the pregnancy implied another sexual relationship. He could maintain that conception followed his return from abroad, after the couple had been apart for six months and were reunited. Le Gris, meanwhile, reportedly described the marriage as unhappy and even brutal, circumstances that might have made conception seem less likely to a court. Yet he did not cite the pregnancy in his defense, perhaps because using it to imply adultery would have been a risky strategy.

Medical Belief and Legal Meaning

The pregnancy acquired particular significance because medieval authorities did not understand conception as modern medicine does. A theory associated with the physician Galen held that conception required a woman’s seed as well as a man’s, and that a woman released this seed only if she experienced orgasm. The belief was sufficiently influential that rape was understood in law as incapable of causing pregnancy.

That reasoning could have made pregnancy damaging to Marguerite’s accusation. If the court accepted that rape could not result in conception, it might regard consensual sex with a third man—and therefore adultery—as more likely than pregnancy following the alleged assault. Le Gris might have used that interpretation to argue that Marguerite accused him to conceal an affair. The account does not establish that the magistrates reached such a conclusion, or even that the pregnancy was discussed in court; it identifies it as a possible consideration as the inquiry proceeded.

Marriage, Inheritance, and Reputation

These theories of conception were connected to the interests of noble households. Inheritance depended on paternity, while a wife’s chastity and a husband’s trust were treated as safeguards of family descent. The expectation that a noble wife would bear legitimate heirs therefore placed pregnancy within a framework of lineage and reputation, not merely private experience.

That framework also intensified the risks of speaking publicly. Le Gris had warned Marguerite that Jean might suspect her of adultery rather than believe her. The account describes Jean as jealous and suspicious, and notes that accusations of infidelity could expose wives to severe consequences. Pregnancy could thus be interpreted in competing ways: as the anticipated birth of a legitimate heir, as a source of uncertainty about paternity, or, under contemporary legal assumptions, as grounds for doubting the accusation.

What the Evidence Leaves Unresolved

The surviving evidence does not reveal what Marguerite knew or feared about the child’s paternity, what Jean privately believed, or how the court would have interpreted the pregnancy had it been raised. The account explicitly separates these private questions from the arguments preserved in the case. Nor did Le Gris make the pregnancy part of his recorded defense. Its significance lies in that unresolved gap: a fact of Marguerite’s life that might have altered how others judged her, yet cannot settle either the child’s paternity or the truth of the accusation.