Herculine Barbin (1838–1868) was a French intersex person who was treated as a female at birth but was later redesignated a male after an affair and physical examination.
Most of what we know about Barbin comes from her later memoirs. Herculine Adélaîde Barbin was born in Saint-Jean-d'Angély in France in 1838. She was regarded as a girl and raised as such; her family referred to her as Alexina. Her family was poor but she gained a charity scholarship to study in the school of an Ursuline convent.
According to her account, she had a crush on an aristocratic female friend in school. She regarded herself as unattractive but sometimes slipped into her friend's room at night and was sometimes punished for that. However, her studies were successful and in 1856, at the age of seventeen she was sent to Le Chateau to study to become a teacher. There she fell in love with one of the teachers.
Although Barbin was in puberty, she had not begun to menstruate and remained flat chested. The hairs on her upper lip and cheeks were noticeable.
In 1857 Barbin received a position as an assistant teacher in a girls' school. She fell in love with another teacher, Sara, and Barbin demanded that only she should dress her. Her ministrations turned into caresses and they became lovers. Eventually rumors about their affair began to circulate.
Barbin, although sick her whole life, began to suffer excruciating pains. When a doctor examined her, he was shocked and asked that she should be sent away from the school, but she stayed.
Eventually, the devoutly Catholic Barbin confessed to Jean-François-Anne Landriot, the Bishop of La Rochelle. She asked him permission to break the confessional silence in order to send for a doctor to examine her. When Dr. Chesnet did so in 1860, he discovered that even if Barbin had a small vagina, she was bodily masculine and had a very small penis and testicles inside her body. In modern terms, she had "male pseudohermaphroditism".
A later legal decision declared official that Barbin was male. She left her lover and her job, changed her name to Abel Barbin and was briefly mentioned in the press. She moved to Paris where she lived in poverty and wrote her memoirs, reputedly as a part of therapy. In the memoirs, Barbin would use female pronouns when writing about her life prior to sexual redesignation and male pronouns, including Alexina and Camille, following the declaration. Nevertheless, she clearly regarded herself as punished, and "disinherited", subject to a "ridiculous inquisition".