Nielsen Hayden genealogy
Ancestors of Floris I of Holland
Abt 1017 - 1061 (~ 44 years) ┌── Dirk I ( - Aft 928)
┌── Dirk II ( - 6 May 988)
│ └── Geva
│
┌── Arnulf of Ghent (951 Ghent, Flanders - 18 Sep 993 Winkel, West Friesland)(m. May 980)
│ │
│ │ ┌── Baldwin II "The Bald" (Abt 864 - 917 bur.Abbey of Saint-Pierre, Ghent, Flanders)
│ │ │ (m. 884) =>
│ │ ┌── Arnulf I "The Great" (Abt 885 - 964 bur.Abbey of Saint-Pierre, Ghent, Flanders)(m. 922)
│ │ │ └── Ælfthryth of Wessex (Abt 870 - 7 Jun 929 bur.Abbey of Saint-Pierre, Ghent,
│ │ │ Flanders)(m. 884) =>
│ │ │ Flanders)(m. 884) =>
│ │ │
│ └── Hildegard of Flanders ( - 990)
│ │
│ │ ┌── Heribert II (Between 880 and 890 -
│ │ │ 23 Feb 943 bur.St. Quentin, Aisne, Picardie, France) =>
│ │ │ 23 Feb 943 bur.St. Quentin, Aisne, Picardie, France) =>
│ └── Adèle de Vermandois (Between 910 and 915 -
│ 958 bur.Abbey of Saint-Pierre, Ghent, Flanders)(m. 922)
│ 958 bur.Abbey of Saint-Pierre, Ghent, Flanders)(m. 922)
│ └── (Unknown daughter of Robert I, King of France) ( - Aft 931) =>
│
┌── Dirk III of Friesland (Between 981 and 989 - 27 May 1039 bur.Egmond Abbey, Bergen, North Holland)
│ │
│ │ ┌── Wigeric ( - Aft 19 Jan 916 bur.Hastière, Belgium)(m. Abt 908)
│ │ ┌── Siegfried of Luxembourg (Between 915 and 920 - Abt 998 bur.Saint-Maximum, Trier, Germany)
│ │ │ (m. Abt 955)
│ │ │ └── Cunegonde (Between 885 and 895 - ??)(m. Abt 908)
│ │ │ └── Ermentrude of France (Between 870 and 877 - ??) =>
│ │ │
│ └── Luitgard of Luxembourg ( - Aft 1005 bur.Egmond Abbey, Bergen, North Holland)(m. May 980)
│ └── Hedwig (Between 935 and 940 - 13 Dec 992 bur.Saint-Maximum, Trier, Germany)(m. Abt 955)
│
Floris I of Holland (Abt 1017 Vlaardingen, Zuid-Holland, Netherlands - 28 Jun 1061 Gelderland, Netherlands)
│
│ ┌── Bernhard I
└── Othelindis of Nordmark ( - 31 Mar 1044 Saxony)