- Born in 1152
- Deceased in 1211 in Saint-Omer, at the approximate age of 58 years
Parents
- Nicolas d'Avesnes, Nicolas "le beau" d'Avesnes (1110 - 1171), seigneur d'Avesnes
- Mathilde de Namur, Mathilde de La Roche (c. 1120 - c. 1152), comtesse de La Roche en Ardennes
Family