m. Jul 1212, Quesnoy - div. 1221
Burchard* D' AVESNES
Margaret* I Of Constantinople Countess Of Flanders
b. 1171/1182, Oisy
d. 1244
br.  
occ. Cantor Of Laon 1205, Sub-Deacon & Treasurer Of Doornik, Bailiff Of Hainault
AKA.  
PAR. Jacques D'Oisy, Man Of Avesnes & Adele De Guise
b. 1202
d. 10 Feb 1280
br.  
occ. Countess Of Flanders & Hennegau 1244-78
AKA. Margaretha
PAR.  
Spouses: 1, 2
Children
Baldwin D' AVESNES(1217 - abt 1218) [Died as Child]
> Jan* D' AVESNES Count Of Holland(Apr 1218 - 24 Dec 1257)