See also

Rudolf DE BOULOGNE's parents: Ingelbert II DE BOULOGNE (c. 965-c. 1012) and Ermengarde VAN VLAANDEREN (1011-1071)
Gisela DE LUXEMBOURG's parents: Frederik VAN LUXEMBURG (965-1019) and Irmtrud Gleiberg VON WETTERAU (978-1054)
Gisela DE LUXEMBOURG's siblings: Otgiva DU LUXEMBOURG (986-1030), Irmentrud VAN LUXEMBURG (c. 995-1055), Frederik VON LUXEMBURG (1003-1065) and Giselbert OF LUXEMBOURG (c. 1005-1059)

Family of Rudolf I DE BOULOGNE and Gisela DE LUXEMBOURG

Husband:
Rudolf I DE BOULOGNE (c. 995-c. 1052)
Wife:
Gisela DE LUXEMBOURG (c. 1006- )
Children:
Boudewijn I VAN GENT (c. 1020-aft1082)
Marriage:

Husband: Rudolf I DE BOULOGNE

Name:
Rudolf I DE BOULOGNE
Sex:
Male
Father:
Ingelbert II DE BOULOGNE (c. 965-c. 1012)
Mother:
Ermengarde VAN VLAANDEREN (1011-1071)
Birth:
c. 0995
Boulogne-sur-Mer, Pas-de-Calais, Nord-Pas-de-Calais, France
Death:
c. 1052 (age 56-57)
Gent, 9000, Oost-Vlaanderen, Belgium

Wife: Gisela DE LUXEMBOURG

Name:
Gisela DE LUXEMBOURG
Sex:
Female
Father:
Frederik VAN LUXEMBURG (965-1019)
Mother:
Irmtrud Gleiberg VON WETTERAU (978-1054)
Birth:
c. 1006
Bouillon, 6830, Luxembourg, Belgium
Death:

Child 1: Boudewijn I VAN GENT

Name:
Boudewijn I VAN GENT¹
Sex:
Male
Spouse:
Oda VAN GENT VLAANDEREN (1035-c. 1082)
Birth:
c. 1020
Gent, 9000, Oost-Vlaanderen, Belgium
Death:
aft 1082 (age 61-62)

Sources

1.: HEER VAN GENT , AALST , WAAS , DRONGEN EN RUISELEDE.