HILDIARDE d'Oisy (-before 1177). "Symon Cameracensis castellanus" granted duty exemptions to the abbey of Saint-Amand, with the approval of "uxor mea Ada et Gilius filius meus", by charter dated 1156, witnessed by "Ade uxoris mee, Gilii filii mei, Hugonis filii mei, Heldiardis filie mee, Matheldis filie mee…"[558]. "Simon vicecomes Meldensis…etiam Ada vicecomitissa" donated property to "Radoliensis" monastery, for the soul of "filii nostri Gilonis", with the consent of "filii nostri Hugo et Petrus et filia nostra Heldealdis", by charter dated to [1164][559]. "Simon Firmitatis Ansculfi vicecomes et uxor mea Ada" donated property to "Radoliensis" monastery, with the support of "filiis et filiabus meis Hugone et Petro, necnon Heldiarde et Mathilde", by charter dated to [1165][560]. "Symon...dominus de Oisi filiusque meus Hugo" donated property to Ourscamp Notre-Dame, with the consent of “ceteri liberi mei Petrus...archidiaconus Cameracensis et Heldegardis et Mathildis, uxorque mea Ada, conjux que filii mei...Gertrudis”, by charter dated 1169[561]. Vicomtesse de Meaux. "Andreas Firmitatis Gaucherii hereditario jureprotector et dominus" donated property to "Sosmensis" monastery, with the consent of "Hildeardis uxor mea", by charter dated 1169[562]. "Ada Meldensium vicecomitissa" made her testament, for the souls of "mariti mei, Gilonis filii mei", with the consent of "filius meus Hugo Cameracensis castellanus…Petrus Cameracensis archidiaconus filius meus, Andreas de Firmitate Gaucheri et Heldiardis uxor sua filia mea", by charter dated to [1171][563]. m ANDRE de Montmirail Seigneur de la Ferté-Gaucher (-before 1180). Their son André de Montmirail inherited the Châtellenie de Cambrai[564].