Poitrine was retrospectively accused of transmitting tuberculosis to the infant prince, thus inadvertently causing his death, aged seven years; this meant that his younger brother Louis Charles became heir apparent.

[1][2] Poitrine is French for "chest"[3] or "bosom",[4] and this purported example of nominative determinism was remarked on during her lifetime.

The courtier and official Marie-Angélique de Bombelles recorded that the new nurse had a ... predestined name - Madame Poitrine - who had large breasts and, according to doctors, excellent milk.

She accepted royal lace and linen without embarrassment, and only asked that she not be made to wear powder, because she had never used it.

[5] Poitrine was retrospectively accused of transmitting tuberculosis to the infant prince, thus inadvertently causing his death, aged seven years; this meant that his younger brother Louis Charles became heir apparent.