Nielsen Hayden genealogy
Descendants of (Unknown wife of Heribert I)
(Unknown wife of Heribert I)
Heribert I ( - Between 900 and 907)
   ├─ (Unknown) de Vermandois
   │ Gebhard ( - Aft 15 Jan 947)
   │    └─ Konrad ( - Abt 982)
   │    
   │        │ + Heinrich I "The Bald" ( - 11 May 976)
   │        └─ Konrad of Swabia and Oenningen (Abt 920 - 20 Aug 997) =>
   │         + Reginlint
   └─ Heribert II (Between 880 and 890 - 23 Feb 943 bur.St. Quentin, Aisne, Picardie, France)
    (Unknown daughter of Robert I, King of France) ( - Aft 931)
       ├─ Luitgarde de Vermandois ( - Aft 978)
       │ + Guillaume "Longue Epee", Leader of the Normans of Rouen (Overseas -
       │ : 16 Dec 942 Picquigny, Picardy, France)
       │ : 16 Dec 942 Picquigny, Picardy, France)
       │ Thibaut I of Blois ( - 16 Jan 975)(m. Between 942 and 945)
       │    │ + William II of Poitou (935 - 3 Feb 993)(m. 968)
       │    └─ Odo I (950 - 12 Mar 996 Tours, Indre-et-Loire, France) =>
       │     + Bertha of Burgundy (Abt 965 - Aft 1010)(m. Abt 983)
       ├─ Heribert "The Old" ( - Between 980 and 984)
       │ + Eadgifu of Wessex (902 - 951)(m. 951)
       ├─ Adèle de Vermandois (Between 910 and 915 - 958 bur.Abbey of Saint-Pierre, Ghent, Flanders)
       │ Arnulf I "The Great" (Abt 885 - 964 bur.Abbey of Saint-Pierre, Ghent, Flanders)(m. 922)
       │    │ + Dirk II ( - 6 May 988)
       │    └─ Baldwin III (Abt 940 - 961 bur.Abbey of Saint-Bertin, Saint-Omer, Pas-de-Calais, France) =>
       │     + Mathilde of Saxony ( - 25 May 1009)(m. 961)
       ├─ Albert I (Abt 915 - Aft 7 Sep 987)
       │ Gerberge of Lorraine (Abt 930 - Aft 7 Sep 978)(m. Bef 954)
       │     + Ermengarde ( - Aft 1018)(m. Bef 987)
       └─ Robert (Abt 920 - Aft 19 Jun 966)
        Adelais ( - Aft 19 Jun 966)(m. Bef 18 Jan 950)
            + Geoffroi I Grisegonelle ( - 21 Jul 987 Marçon, Sarthe, Pays-de-la-Loire, France)(m. Abt 965)