Ingelbert II De+ Boulogne 
He had a biological son named Raoul De+.
-
Children
Raoul De+ Boulogne
Raoul De+ was born about 1010 in Gand, Flanders, Belgium. He died in 1047 in Alost, Flanders, Belgium.
Ingelbert II De+ Boulogne Raoul De+ Boulogne