JAN van Oudenaarde (-[12 Dec 1293/Apr 1294]). The late 13th century genealogy by Balduinus de Avennis names "Joannes" as the son of "domino Arnulpho de Audenarde" and his wife[1289]. Under a codicil dated Aug 1242, “Arnould d’Audenarde” appointed his executors, guaranteed by “Jean son fils”[1290]. Heer van Oudenaarde. “Johannes miles dominus de Audenarde” donated property “in Bafia tenebam in feodum de...domino Johanne de Avesnis” to Cambron by charter dated Aug 1251[1291]. “Johannes de Audenarde miles et...Mathildis relicta...Gerardi quondam vicedomini Pinchonii uxor nostra” confirmed a donation to Amiens made by “Eustachius dictus Dyabolus” by charter dated Apr 1252[1292]. “Aelis appelée de Audenarde dame de Lessines...Jehans mes fils appeleis sires de Audenarde” donated property “à Tongre” to Cambron abbey by charter dated Mar 1257[1293]. “Jehans...sires d’Audenarde” granted revenue from vines, as he had granted to “mon signor Loeis d’Audenarde signor de Marke, avoe de Hasbaing men cousin”, to “Ernous ainsnes fix et oirs de celui Loeis”, reserving “ara Mahaus dame de Marke avoeresse de Hasbaing mere celui Ernoul”, by charter dated Nov 1261[1294]. Seigneur de Rozoy: “Johannes miles dictus dominus de Audenarde et dominus de Roseto” confirmed the donation of property “in tenemento de Baffia” to Cambron made by “domina mater mea” by charter dated Feb 1264 (O.S.)[1295]. "Jehans dis Sires d’Audenarde et Sires de Rosoit et Mehaus sa femme Vidamesse d’Amiens Dame de Piquigny" donated property to "le Maison des Vaus des Virgenes de Pamele" by charter dated Jan 1277[1296]. "Jehans dis sires d’Audennarde sires de Rosoit" confirmed the testament of "me…fille Marie jadis dame de Nineve" (confirmed by "mon segnor Jehan de Neela qu’on dit de Falleni [son mari]") by charter dated 1277[1297]. Jan Heer van Oudenaarde en Rosoy promised to deliver Lodewijk van Marke his cousin to the count of Flanders if he captured him, by charter dated 128[0/9][1298]. m firstlyADELA de Soissons, daughter of JEAN [II] de Nesle Comte de Soissons & his first wife Marie du Thour et de Chimay (-before 1252). The late 13th century genealogy by Balduinus de Avennis records that "Joannes", son of "domino Arnulpho de Audenarde", married "filia Joannis comitis Suessionensis"[1299]. The Chronicon Hanoniense of Baudouin d’Avesnes records that "Jehans...conte de Soissons" married "la fille monseignour Alart de Chimay ki siet en Haynau...hoirs de la terre de Chimai" by whom he had “2 fils et 3 filles...li ainsnes...Aelis fut mariee a monseignour Jehan d’Adenarde, qui ot de li une fille...Marie”[1300]. m secondly as her second husband, MATHILDE de Crecques, widow of GERARD [III] de Picquigny Vidame d’Amiens, daughter of ANSEAU [II] de Crecques & his wife Beatrix de Guines (-after 1296). The late 13th century genealogy by Balduinus de Avennis records that "Joannes", son of "domino Arnulpho de Audenarde", married secondly "sororem domini Roberti de Cresekes, relictam vicedomini de Pinkengni"[1301]. “Johannes de Audenarde miles et...Mathildis relicta...Gerardi quondam vicedomini Pinchonii uxor nostra” confirmed a donation to Amiens made by “Eustachius dictus Dyabolus” by charter dated Apr 1252[1302]. "Jehans dis Sires d’Audenarde et Sires de Rosoit et Mehaus sa femme Vidamesse d’Amiens Dame de Piquigny" donated property to "le Maison des Vaus des Virgenes de Pamele" by charter dated Jan 1277[1303]. Jan & his first wife had one child