- Ermengarde of Tonnerre
Ermengarde (c. 1032 - 1083), daughter of Renauld,
Count of Tonnerre , marriedWilliam I, Count of Nevers , in 1045. She had six children:
#Ermengarde (b. 1050), marriedHubert I, Count of Beaumont ;
#Robert (1052 - Feb 12, 1095), laterBishop of Auxerre ;
#William II (1052 - 1090), inherited grandfather's title as Count of Tonnerre;
#Heloise (b. 1056), married William,Count of Évreux ;
#Sibille (1058 - 1078), married Hugh I,Duke of Burgundy ; and
#Renauld II (1059 - 1097), inherited father's title asCount of Nevers .Her husband William I was the son of
Renauld I, Count of Nevers and Hedwig/Advisa of Auxerre, daughter ofRobert II of France .References
* [http://fmg.ac/Projects/MedLands/BURGUNDIAN%20NOBILITY.htm#RenaudINeversdied1040B Foundation for Medieval Genealogy on Renauld and Hedwig]
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