• Born: Montlhéry, Essone, Ile-de-France, France
• Married:
• Died: After 1113

  Research Notes:

The Historia of Monk Aimon names "Milonem de Brayo et Guidonem Rubeum, Comitissam quoque Reiteste, et Bonam-vecinam de Pontibus, Elizabeth etiam uxorem Joscelini de Corteciniaco, insuper dominam de Puisat, et dominam de S. Galerico" as the children of "Guidonem" and his wife, stating in a later passage that "Elisabeth filiam Milonis de Monte-Letherico" was the second wife of "Joscelinum de Cortinaco". It appears chronologically more probable that Isabelle was the daughter of Guy rather than his son Milon, but this is not without doubt. William of Tyre specifies that the mother of Joscelin de Courtenay Count of Edessa was the sister of the mother of Baudouin de Bourg, later Baudouin II King of Jerusalem, according to the testimony of her granddaughter concerning the consanguinity between Amaury I King of Jerusalem and his first wife which provided the basis for the annulment of their marriage in 1162. ²