Zij is getrouwd met Hugues II d'Oisy.
Zij zijn getrouwd
Kind(eren):
HILDIARDE de Mons (-31 Mar 1145). She was presumably the unnamed daughter mentioned in the following charter. Gérard Bishop of Cambrai confirmed the foundation of Aymeries priory by "Ermengardis de Mons...cum filiis suis...et filia" by charter dated 1088, subscribed by “...Gosuini de Montibus et Isembardi filiorum Ermengardis”[1627]. The Annales Cameracenses record the death "II Kal Apr" in 1145 of "castellana Heldiurdis"[1628]. The necrology of Béthune Saint-Barthélemy records the death “II Kal Apr” of “Heldiardis de Oisy”[1629]. m HUGUES Châtelain de Cambrai, son of HUGUES [I] de Douai Châtelain de Cambrai & his wife Ada [de Rumigny] (-16 Oct after 1133).
https://fmg.ac/Projects/MedLands/HAINAUT.htm#HildiardeMonsdied1145