Nielsen Hayden genealogy
Descendants of Dirk I
- Aft 928
Dirk I
( - Aft 928)
   └─ Dirk II ( - 6 May 988)
    Hildegard of Flanders ( - 990)
       └─ Arnulf of Ghent (951 Ghent, Flanders - 18 Sep 993 Winkel, West Friesland)
        Luitgard of Luxembourg ( - Aft 1005 bur.Egmond Abbey, Bergen, North Holland)(m. May 980)
           └─ Dirk III of Friesland (Between 981 and 989 -
            27 May 1039 bur.Egmond Abbey, Bergen, North Holland) =>
            27 May 1039 bur.Egmond Abbey, Bergen, North Holland) =>
            + Othelindis of Nordmark ( - 31 Mar 1044 Saxony)