How a self-taught midwife became the most trusted medical authority in royal France

Health · Published 3 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: Louise Boursier, a 17th-century French midwife, rose from poverty to become the royal birth attendant for Marie de' Medici. By prioritizing hands-on observation over ancient theory, she authored the first obstetrics book by a woman, revolutionizing how midwives and physicians approached the complexities of pregnancy, childbirth, and newborn care.

Born in 1563, Louise Boursier entered midwifery out of financial necessity after war destroyed her family home. Unlike her peers, she bypassed traditional apprenticeships, instead teaching herself through the writings of surgeon Ambroise Paré and by witnessing autopsies and deliveries at Paris’s Hôtel-Dieu. In 1598, she secured her license despite fierce opposition from established royal midwives who feared her competition.

Her career reached its zenith in 1601 when she was appointed midwife to Queen Marie de' Medici. Over the next 26 years, Boursier attended the births of six royal children, including the future Louis XIII. Her expertise was so highly regarded that she earned 900 livres per birth—eight times the salary of a municipal midwife—and eventually received a royal pension.

Boursier’s legacy rests on her three-volume work, Observations diverses, published between 1609 and 1626. She challenged the medical establishment by documenting her own case histories and testing established remedies against her clinical observations. She championed techniques like podalic version, which allowed for safer deliveries of malpresenting infants, and urged women to understand their own bodies to better communicate with physicians.

Her career ended in controversy following the 1627 death of the Duchess of Montpensier. Despite Boursier’s published defense, the medical establishment’s report on the incident damaged her standing. Nevertheless, her work remained influential, translated into English, German, and Dutch, cementing her status as a pioneer who bridged the gap between traditional midwifery and early modern medical science.

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