Nielsen Hayden genealogy
Ancestors of Ragnhild of Norway
┌── Sigurd Syr (Abt 960 - 1018)
┌── Harald Hardrada, King of Norway (Abt 1015 - 25 Sep 1066 Stamford Bridge, Yorkshire, England)
│ │ ┌── Gudbrand Kula of the Upplands
│ └── Asta Gudbrandsdottir
│ └── Ulfhilde
│
┌── Olav III, King of Norway (Abt 1050 - 22 Sep 1093 Håkeby, Tanum, Västra Götaland, Sweden)
│ └── Thora Thorbergsdatter (1025 - ??)
│
┌── Magnus III, King of Norway (Abt 1070 - 24 Aug 1103 Ireland)
│ └── Thora Jonsdatter
│