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

Siward was born in 0997 in denmark.  Siward's father was Earl Biorn Ulfsson England.  His paternal grandparents were Ulf Thorgilsson Jarl of denmark and Estrid Svendsdatter Princess of denmark.  He was an only child.  He died at the age of 58 in 1055 in York,Yorkshire,England.


Siward's family with Aefflaed de Bernicia

‌Siward and Aefflaed were married in a religious ceremony about 1038 in Northumbria,England.  They had a son and a daughter, named Waltheof II and Aelflaed Sybilla FitzSiward of.

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