Everard I De Mortagne De Tournai
Everard I De Mortagne was born about 1065 in Mortagne,Pas-De-Calais,Normandy,France.¹   He died after 1110.

 Helvide
Helvide was born in 1065 in France.  She died after 1099.

 Walter De Mortagne Burggraf von Doornick
Walter was born in 1086 in Mortagne,Pas-De-Calais,Normandy,France.²   He died after 1137.² 

 Ade De Tournai
Ade was born in 1095 in Oizy,Namur,Belgium.