Nielsen Hayden genealogy
Descendants of Harald Grenske
Abt 952 - Abt 995 (~ 43 years)
Harald Grenske
(Abt 952 - Abt 995)
   └─ St. Olaf II Haraldsson, King of Norway (Abt 995 - 31 Aug 1030 Stiklestad, Verdal, Nord-Trøndelag, Norway)
    Astrid Ólafsdóttir ( - Between 1021 and 1022)(m. Feb 1018)
       └─ Úfhildr Ólafsdóttir (Abt 1023 - 24 May 1070)
        Ordulf of Saxony (Abt 1020 - 28 Mar 1072)(m. Nov 1042)
           └─ Magnus of Saxony (Abt 1045 - 23 Aug 1106 bur.Artlenburg, Lower Saxony) =>
            + Sophia of Hungary (Abt 1050 - 18 Jun 1095)(m. Between 1070 and 1071)