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Male Halfdan Sigurdsson Click to view Halfdan Sigurdsson in the family tree

Halfdan was born in 0995 in Stein, Norway.  Halfdan's father was Sigurd "Syr" Halfdansson , King of Ringerike and his mother was Estrid (Asta) of Uplands.  His paternal grandfather was Halfdan Sigurdsson , King of Ringerike; his maternal grandparents were Gudbrand Jarl of Uplands and Ulfhilde (Gunnhild) Thorasdottir. He had a brother named Harald III Hardraade King of.  He was the older of the two children. He had a half-brother named St Olaf II "The Fat" King of.

Halfdan's family

He had a biological daughter named Bergliot Thorborg.

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