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Male Siward Bjornsson Click to view Siward Bjornsson in the family tree

Siward was born about 1020 in Of,,Denmark.1   Siward's father was Biorn or Bjorn ULFIUSSON and his mother was Mrs-Biorn ULSIUSSON.  His paternal grandparents were Ulf (Ulsius) Thorkilsson Jarl of Denmark and Estrid Svendsdatter of Denmark. He had a sister named Aelflaed (Sybil) of.  He died in 1055 in York,Yorkshire,England.  He was buried in Galmanho Abby,York,Yorkshire,England.1 1 


Siward's first family with AEfflaed of Bernicia

‌Siward and AEfflaed were married in a religious ceremony about 1038 in Northumbria,England.  They had two sons named Waltheof II Earl of and Osbeorn of.


Siward's second family with LIVING UNKNOWN


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