Ermengarde of Tonnerre


Ermengarde, daughter of Renauld, Count of Tonnerre and Herviz, she married William I, Count of Nevers in 1045. She had six children:
  1. Ermengarde, married Hubert I, Count of Beaumont
  2. Robert, later Bishop of Auxerre
  3. William II, inherited grandfather's title as Count of Tonnerre
  4. Heloise, married William, Count of Évreux
  5. Sibille, married Hugh I, Duke of Burgundy
  6. Renauld II, inherited father's title as Count of Nevers.
Her husband William I was the son of Renauld I, Count of Nevers and Hedwig/Advisa of Auxerre, daughter of Robert II of France.