On an unknown date, she married the actor Charles Le Noir (fl.
She was engaged in 1631 the troupe of Charles Le Noir and Guillaume Des Gilberts/Mondory, which was later to become the Théâtre du Marais.
Between 1629 and 1634, only two actresses were employed by the theatre and able to play these roles, Mlle Le Noir (Isabelle or Elizabeth Mestivier) and Mlle de Villiers (Marguerite Béguin), it has often been assumed that he wrote the plays with them in mind.
In December 1634, she was one of six actors to join the Hôtel de Bourgogne (theatre) on the king's command.
[1] Her son Francois Le Noir, stage name La Thorillière, became an actor and the central figure of an acting family famous in contemporary Paris.