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Male Siward Biornsson (Digera) Northumberland Earl Click to view Siward Biornsson (Digera) Northumberland Earl in the family tree

Siward Biornsson (Digera) was born about 1020 in , , , Denmark.  Siward Biornsson (Digera)'s father was Jarl Biorn Ulsiusson Of Denmark Earl.  His paternal grandparents were Ulsius (Ulf) (Thorgilsson) Of Denmark Jarl and Estrid Svendsdatter Svendsdatter Of Denmark Princess. He had a brother named Ealred.  He died in 1055 in York, , Yorkshire, England.  He was buried in 1055.


Siward Biornsson (Digera)'s family with Alefled III (Aefled Of Bernicia

They had a son named Waltheof II.

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