Ermengarde of Tonnerre

Ermengarde (c. 1032 – 1083), daughter of Renauld, Count of Tonnerre and Herviz, she married William I, Count of Nevers in 1045. She had six children:

Her husband William I was the son of Renauld I, Count of Nevers and Hedwig/Advisa of Auxerre, daughter of Robert II of France.