MATHILDE . "Erardus dominus de Chacenai" donated property to Clairvaux abbey, with the consent of "uxor mea Emelina et filii mei Erardus et Mathildis", by charter dated 1217[905]. "Erardus dominus Chacenaii" donated property to Montier-la-Celle with the consent of "Emelina uxor mea et filius meus Erardus et filie mee Mahaut et Johanneta" by charter dated 1218[906]. "Erardus dominus Chacenaii" donated property to the abbey of Longuay, with the consent of "Emmelina uxor mea, et Erardus filius meus, et Mahaut et Johanneta filie mee", by charter dated Jul 1218[907]. Her marriage is confirmed by a charter dated 1223 under which Jean King of Jerusalem confirmed an agreement about the sénéchaussée du Nivernais between Mathilde Ctss de Nevers and Erard de Chacenay, under which the latter relinquished his claim in return for the allegiance of "Gui seigneur d’Arcis, qui avait épousé Mathilde fille du dit Hérard de Chacenay" for "la terre de Gachy"[908]. 1233. m (before Jun 1223) GUY d'Arcis-sur-Aube, son of JEAN de Montréal Seigneur d’Arcis-sur-Aube & his wife Helisende --- (-after 1241).