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Male Siward Biornsson Northumberland Click to view Siward Biornsson Northumberland in the family tree

Siward Biornsson was born about 0997 in Denmark.  Siward Biornsson's father was Biorn Ulfiusson and his mother was Mrs Biorn Ulfiusson.  His paternal grandfather was Ulfius Shratlingusson. He had a sister named Sibyl Of.  He was the older of the two children.  He died in 1055 in York, Yorkshire, England.  He was buried in Galmanho Abby By, York, Yorkshire, England.


Siward Biornsson's family with Aelfled Elfleda Of Bernicia

‌Siward Biornsson and Aelfled Elfleda Of were married in a religious ceremony about 1033 in Of Northumbria, England.  They had a son named Waltheof II Earl Of Huntingdon.

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