Rainard DE TONNERRE Count of Tonnerre
- Born: Between 980 and 990, Tonnerre, Yonne, Bourgogne, France
- Died: After 16 Jul 1039
“Milo comes Tornodorensis castri” donated property to the monastery of Saint-Michel, with the consent of “coniugis mee Ermengarde et…filiorum meorum Achardi, Rainardi et Alberici”, by charter dated to [992/1005]. "Milo comes… Achardus, Odo, Raynardus" witnessed the charter dated to  under which “Umbertus…et mee conjugis…Giberge” donated property "in villa…Curtis-Secreta…in comitatu Tornodorense" to Saint-Michel de Tonnerre. It is possible that the last three names in the list refer to the children of Milo [IV] Comte de Tonnerre.
Comte de Tonnerre. "Raynardus comes Tornodorensis pagi et mater mea Ermengardis comitissa" donated "alodum nostrum…Cappam" to Saint-Michel by charter dated 1002, signed by "Odonis vicecomitis…". "Leotgarda comitissa…ac filii mei Rogerii" donated "terram…in villa…Jassant" to Saint-Michel by charter dated to , signed by "Rogerius comes, Richardus, Rainardus comes, Alberic, Erembertus vicecomes, Milo…". “Rainaldus comes” donated property to the monastery of Saint-Michel, for the soul of “filii mei Othonis” buried in the monastery and “uxore mea Herviz…filio nostro Arduyno ac filia Ermengarda”, by charter dated Jul 1036, subscribed by “…Raynaldi comitis, Willelmi comitis filius eius”. “Raynardus comes” donated property to the monastery of Saint-Michel (on his deathbed), with the consent of “uxoris mee Herviz et filii mei Harduini sive filie mee Ermengarde”, by charter dated 16 Jul 1039 which also names “mater mea Ermengardis”.
Rainard married Helvis. (Helvis died after 16 Jul 1039.)