She served as Fille d'honneur to queen Catherine de Medici, and dame d'atour to the queen of France, Louise of Lorraine, from 1575 until 1590.

She was the daughter of René de Béraudière and Madeleine du Fou.

She had an affair with king Antoine of Navarre, and it was believed that it was she who convinced Antoine to return to Catholicism on the mission of Catherine de Medici.

She became the mother of Charles III de Bourbon (1554–1610) by Antoine.

As such it was her task to manage the queen's wardrobe and supervise her 10 chamber maids, but she had also been appointed because of her sense of fashion, and it was her task to advise the queen in how to dress, a task which was important for the fashion-interested king, which she is said to have performed with success.