Jacques D'avesnes Conde Et De Lueuze …, son of Nicolas Sire D'avesnes … and Mahaut De Laroche …, was born in 1150 and died on September 7, 1191 in Arsoeuf, Palestine at the age of 41. He married Ameline De Guise …, daughter of Bernhard De Guise “Bouchard” and Alix …, in 1180. She was born in 1139 and died in 1185 at the age of 46.

Bouchard D'avesnes …, son of Jacques D'avesnes Conde Et De Lueuze … and Ameline De Guise …, was born after 1180 and died on September 7, 1244 in Estroeungt. He married Margarethe Countess Of Flanders & Hainault …, daughter of Baudouin VI Count Of Flanders … and Marie De Champagne …, on July 23, 1212. She was born about 1198 and died on February 10, 1279. Bouchard D'avesnes … and Margarethe Countess Of Flanders & Hainault … were divorced.

Jan I D'avesnes Regent Of Hainault …, son of Bouchard D'avesnes … and Margarethe Countess Of Flanders & Hainault …, was born in April 1218 in Houffalize and died on December 24, 1257 in Valenciennes at the age of 39. He married Aleida Of Holland …, daughter of Floris IV Count Of Holland … and Machteld Of Brabant …, in September 1246. She was born in 1224 and died on March 1, 1283 at the age of 59.