JACQUES d'Avesnes ([1150]-killed in battle Arsuf, Palestine 7 Sep 1191). The Genealogica comitum Buloniensium names "Iacobum Avesnensem" as son of "Mathildis [filiam Henricum comitem de Rupe]"[470]. The Chronicle of Alberic de Trois-Fontaines names (in order) "Iacobum et Idam castellanam Sancti Audemari" as children of "Nicolao de Avenes" & his wife[471]. The Chronicon Hanoniense names "Iacobum" as son of "Nicholaus filius [Walteri…de Avethnes]" & his wife[472]. The late 13th century genealogy by Balduinus de Avennis names "Jacobum et Fastradum" as the two sons of "Nicolaus Plukellus"[473]. Seigneur d'Avesnes, de Leuze et de Condé. Seigneur de Guise, by right of his wife. "The bravest knight in Flanders", he left on crusade in [Sep] 1189[474]. He arrived off Acre in [Nov] 1189 and took part in the siege of the town[475]. He was killed in battle fighting Saladin with Richard I King of England[476]. The Chronicon Hanoniense names "Iacobus de Avethnia" among those who died in Palestine in [1191][477]. The Chronicle of Ernoul records that "Jakemes d'Avesnes li bons chevaliers" was killed fighting the Muslims at Arsuf[478]. The Annales Aquicinctini record that "Iacobus de Avesnis" was killed by Saracens in 1192[479]. The necrology of Brogne records the death "VII Id Sep" of "domnus Jacobus de Avenes"[480]. m ([1163/68]) ADELINE de Guise, daughter of BOUCHARD Seigneur de Guise & his wife ---. The Chronicon Hanoniense names "Adelviam Buchardi de Guisa filiam" as wife of "Iacobum [filium Nicholai…de Avethnes]"[481]. The late 13th century genealogy by Balduinus de Avennis records that "Nicolai Plukelli filius primogenitus Jacobus" married "Adeluyam unicam filiam Bouchardi domini de Guisia"[482]. 1185. Adelaide Dame de Guise, with the consent of Gauthier her son and her other children, made a donation for the soul of her later husband Jacques d'Avesnes by charter dated 1196[483]. Jacques & his wife had eight children