- Born in 1182
- Executed in 1244, at the approximate age of 61 years
Parents
- Jacques d'Avesnes (1152 - 1191), seigneur d'Avesnes, croisé lors de la troisième croisade
- Alix de Guise (c. 1150 - aft. 1207), dame de Lesquielles-Saint-Germain
Family
- Married in 1212, with Marguerite de Hainaut, Marguerite de Constantinople (1202 - 1280), comtesse de Flandre, issuing