Seigneur Jacques d'Avesnes
Jacques was born in 1153.  He died  due to died in battle of Arsouf at the age of 38 on September 7th, 1191 in Arsouf, Palestine.

 Adele de Guise
Adele was born in 1155 in Guise, Aisne, France.

 Gauthier d'Avesnes II
Gauthier was born about 1175 in Avesnes, Pas-de-Calais, Normandy, France.  He died in 1249.

 ArchDeacon Bouchard d'Avesnes of Laon
Bouchard was born in Oizy, Namur, Belgium.  He died in 1244 in Clairefontaine, Autelbas, Luxembourg, Belgium .  He was buried in Clairefontaine, Autelbas, Luxembourg, Belgium .