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

Siward (Digera) Biornsson of was born about 0978.  Siward (Digera) Biornsson of's father was Bjorn Stybjornsson.  His paternal grandparents were Stybjorn the Strong Olafsson of Sweden and Thyra Haraldsdottir Blauzahn of Denmark.  He was an only child.  He died in 1055.


Siward (Digera) Biornsson of's family with Aelflaed II of Bernicia Northumberland

They had a son and a daughter, named Waltheof II of and Aelflaed (Sybil) of.

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