 Gertrud van Aalst, daughter of Badouin de Gand and Regenwidis.Born before 1098 at Aalst (Alost), East Flanders, Belgium, died Married/ Related to:  Arnould d' Ardres, son of Arnould d' Ardres and Mathilde de Marquise.Born ± 1090 at Castle Ardres, Nord-Pas-de-Calais, France, died 1139, approximately 49 years Child: 1. Adelide (Adelaide) d' ArdresBorn ± 1120 at Castle Ardres, Nord-Pas-de-Calais, France, died after 1148 | |||