He is married to Nn Nn.
They got married
Child(ren):
WEDRICUS "Ad-barbam" . The Chronicon Lætiense names "Wedricus cognomen Ad-barbam", specifying that his domain was "apud Fagetum" and that he constructed the castle of Avesnes[737]. Seigneur d'Avesnes. m ---. The name of Wedricus's wife is not known.
Wedricus & his wife had [four or more] children:
THIERRY (-[1106]).
Son Nn
GERARD d’Avesnes (-killed in battle mid-1102).
IDA
Bronnen:
[737] Chronicon Lætiense 2, MGH SS XIV, p. 493.
https://fmg.ac/Projects/MedLands/HAINAUT.htm#IdaAvesnesMFastreIOisy