catherine henriette de balzac d'entragues, marquise de verneuil (1579–1633) was the favourite mistress of henry iv of france after gabrielle d'estrées died: her sister marie-charlotte de balzac d’entragues was also a mistress of the king. she was the daughter of charles balzac d'entragues and his wife marie touchet, who was formerly the sole mistress of charles ix of france.