Nielsen Hayden genealogy
Descendants of Adalulf
- 933Father: Baldwin II "The Bald" (Abt 864 - 917 bur.Abbey of Saint-Pierre, Ghent, Flanders)
Mother: Ælfthryth of Wessex (Abt 870 - 7 Jun 929 bur.Abbey of Saint-Pierre, Ghent, Flanders)
Adalulf ( - 933)
   └─ Arnulf I ( - 971)
   
       └─ Arnulf II ( - Abt 990)
        (Unknown daughter of the castellan of Lens)
            + Adelvie de Gant