• Born: Brienne-le-Château, Aube, Champagne, France
• Married:
• Died: After 980

  Research Notes:

According to Europäische Stammtafeln, the wife of Milon [II] Comte de Tonnerre was the possible daughter of Engelbert [I] de Brienne, but the basis for this speculation has not been found. It is possible that it is based on the location of the property donated in the Jul 980 charter in which “Milo comes pagi Tornodorensis…et Ingeltrudis uxoris suæ” restored the monastery of Saint-Michel, naming property "in pago Brionense in villa Jasant" half of which was donated immediately and the other half "post excessum Ingeltrudis uxoris suæ", signed by "Richardi comitis, Milonis". The correctness of the speculation appears confirmed by an undated charter which records that "Milo quondam comes" donated property "in villa…Jassant" to Saint-Michel, and that the property was claimed after his death by "comes Ingelbertus" (presumably either Engelbert [II] or Engelbert [III] Comte de Brienne). ²