Catherine de Mayenne was born in 1585, as the daughter of
Charles, Duke of Mayenne (1554–1611), younger brother of
Henry of Guise, and his wife,
Henriette of Savoy-Villars (1541–1611), whom he had married in 1576. On 1 February 1599, at the age of 14, She married
Charles de Gonzague, future
Duke of Mantua and
Montferrat, in
Soissons, and actively assisted her husband in his administration. In 1604 she was courted insistently by
Henry IV of France. She and her husband chose to leave the French court. She gave her husband six children, three boys and three girls. Catherine created many convents, monasteries, abbeys, churches, schools and hospitals. In Charleville she founded a college of the Society of Jesus, where youth were educated in piety and letters. She also founded a Capuchin convent and a hospital in that city. She founded two Carmelite monasteries, a monastery of the Holy Sepulcher, a Franciscan convent, a Capuchin church, and a large priory of the Christian Militia that served as a hospital. In 1615 Catherine was chosen from among the princesses of France to accompany
Elizabeth of France, sister of King
Louis XIII, to the borders of France and Spain, and there to receive
Infanta Anna of Spain. After catching a chill, she died at her
Hôtel de Nevers in Paris in 1618 at the age of 33. Her biography by Père Hilarion de Coste says that "One would not know enough to praise the wise, chaste and virtuous Caterine, except to confess that she surpasses all praise." ==Children==