- Born on October 19, 1581 in Sorigny, at château de Thais
- Baptized on April 3, 1583 in this municipality
Parents
- René II de Sanzay (1531 - aft. 1596), chevalier, comte de Sanzay, conseiller du Roi en ses conseils, colonel général de la noblesse de France
- Charlotte Gédouin de Thaix, vicomtesse de Tupigny
Family
- Married in 1598, with Renée Rannou, vicomtesse de Pratmeur, issuing
- René IV (1607 - )