According to her French-language Wkipedia article, she became Henri IV’s official mistress and also was the mistress of Claude de Lorraine, duc de Chevreuse - how to live dangerously. She was officially married to Philippe de Harlay Champvallon, who was homosexual, some time before 1604. She married René II du Bec Crespin in 1604 and bore him two sons. René II was also stepfather to Antoine de Bourbon-Bueil, son of Jacqueline de Bueil and Henri IV. Her genealogical sketch is here.