- Born: Abt 1164, Roeulx, Walloon Region, Belgium
- Married: 1118
- Died: Before 1224 10169
Another name for Eustace was Eustache III CANIVET Sire de Roeulx.
I orginally had Eustace holding Roeux, which is in Artois (now the department of Pas-de-Calais) in France, which is just south of Belgium making it seem reasonable. It turns out, according to Leo van de Pas, citing ES, that Eustace is of Roeulx, which is in Belgium. Just one letter can make a big difference.
Leo van de Pas, citing ES, has "Eustache Canivet, Sire du Roeulx", as father of Agnes, while he was "Eustache III Canivet, Sire de Roeulx" as wife of Marie de Mortagne. I believe that they are the same person. With Agnes' late birth date compared to Eustache's, maybe there is a question of which Eustache was father of Agnes. There were three Eustache Sire de Rouelx descendants of this Eustache. 1118
Eustace married Marie DE MORTAGNE, daughter of Seigneur Baudoin IV DE MORTAGNE Castellan Tournai and Heldiarde (Hildegarde) DE WAVRIN 1118. (Marie DE MORTAGNE was born about 1185 in Tournai, Walloon Region, Belgium and died after 1221 10168.)