She served as Première dame d'honneur to the queen of France, Louise of Lorraine, from 1575 until 1583.
Her mother Louise de Daillon du Lude and sister Anne de Vivonne were both attached to the court of queen Marguerite of Navarre, and she herself attended court from the age of eight.
She was well liked by Marguerite of Navarre, so much so that king Francis I of France on one occasion asked her to act as mediator between him and his sister.
[3] In 1575, she was appointed to the office of Première dame d'honneur to the new queen of France, Louise of Lorraine, and as such responsible for the female courtiers of the queen (one Dame d'atour, 26 Dame and 14 Fille); of controlling the budget, organizing the annual account and staff list, as well as supervising the daily routine and presentations to the queen.
Having attended the French royal court since her childhood, she was given the task to guide queen Louise in court protocol and help her to play her role as queen, a task she is said to have done successfully.