*Ada (Ida) of Mortagne
born about 1109 Oizy, Namur, Belgium

father:
*Everard I Radulf Burggraf von Doornick Duke of Montagne
died 1112

mother:
unknown

siblings:
Walter Burggraf Von Doornick

spouse:
*Walter I d'Oisy Seigneur d'Avesnes et Leuze
born about 1105 Oizy, Namur, Belgium
died 1147

children:
*Nicholas Seigneur d'Avesnes, Leuze et Conde
born about 1129
died about 1169

biographical and/or anecdotal:

notes or source:
ancestry.com