Halfdan 'The Gray' Sigurdsson, King of RINGERIKE 
He had a biological son named Sigurd 'Syr' Halfdansson, King of.
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Personal Details
Halfdan 'The Gray' Sigurdsson, King of RINGERIKE
Halfdan 'The Gray' Sigurdsson, King of was born about 0934 in Rise, Ringerike, Norway. He died after 0970 in Trondheim, Norway.
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Children
Sigurd 'Syr' Halfdansson, King of RINGERIKE
Sigurd 'Syr' Halfdansson, King of was born in 0958 in Kvam, Nord From. Norway. He died in Bonses, Ringerike, Norway.