Nielsen Hayden genealogy
Descendants of Gerberga of Alsace
- Bef 996Father: Godfrey of Lorraine ( - Aft 1 Jun 949)
Mother: Ermentrude ( - Aft 934)
Gerberga of Alsace ( - Bef 24 May 996)
Megingoz of Avalgau ( - Abt 998 Gelderland, Netherlands)
   └─ Ermentrude
    Heribert I of Kinziggau ( - 992)
       └─ (Unknown daughter of Heribert I)
        Frederick I of Luxembourg (965 - 6 Oct 1019)(m. Bef 995)
           ├─ Gisela of Luxembourg ( - Aft 1058 bur.Chapel of St. Lawrence, Ghent, Flanders) =>
           │ + Ralph de Gand ( - Between 1052 and 1056)
           ├─ Imiza of Luxembourg (Abt 1000 - Aft 2 Aug 1055) =>
           │ + Welf II ( - 10 Mar 1030)(m. Abt 1017)
           │ + Gerberge de Boulogne ( - Aft 1059)
           └─ Giselbert of Luxembourg (Abt 1007 - 14 Aug 1059) =>
            +