ERARD [II] de Brienne, son of GAUTHIER [II] Seigneur de Brienne & his [first/second] wife Humbeline de Baudément (-8 Feb [1190/91]). "Walterus Brenensis comes" granted "decimam reddituum suorum de Brena Castello" to the abbey of Basse-Fontaine by charter dated 22 Jan 1143, subscribed by "Airardi filii sui, Andree filii sui, Marie filie sue…Johannis de Brena clerici…Guidonis fratris comitis"[383]. "G comes Brene" donated property to "ecclesie Sancte Marie de Rameruco" with the consent of "uxoris Adelisis, Erardi, Andreæ filium meorum atque Marie filie mee" by charter dated 1147[384]. He succeeded his father in [1161] as Comte de Brienne. "Erardus Brenensis comes", recalling "bone memorie Galteri comitis…Brenensis", donated property to the abbey of Basse-Fontaine in the presence of "matris mee et Johannis fratris mei abbatis Belliloci et domini Willermi de Dompetra" and with the consent of "Agnetis uxoris mee et Andree fratris mee" by charter dated 1166[385]. He took part in the Fourth Crusade in 1189[386].
m (before 1166) AGNES de Montbéliard, daughter of AMEDEE de Montfaucon Comte de Montbéliard & his first wife Beatrix --- ([1150/55]-23 Oct ----, after 1186). "Agnetis uxoris mee" consented to the donation by "Erardus Brenensis comes" recorded in the latter's charter dated 1166[387]. The primary source which confirms her parentage has not yet been identified. "Erardus comes Brenensis…comitissa uxore mea Agnete, filiis quoque meis Galtero…et Guillelmo et Andrea" made a donation to Montiérender by charter dated 1181[388]. "Erardus Brenensium comes…Agnetis uxoris mee et Galterii filii mei" donated property to Basse-Fontaine by charter dated 1185[389]. "Erardus Brenensium comes" donated property to Basse-Fontaine with the consent of "Agnetis uxoris mee et Galteri et Guillelmi filiorum meorum" by charter dated 1186, witnessed by "Johannes frater meus abbas Belliloci…Andreas frater meus"[390]. The necrology of Chartres cathedral records the death "X Kal Nov" of "Agnes…comitissa de Breina"[391].
Comte Erard [II] & his wife had five children