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Family Earl Siward Biornsson of Northumbria & Aelfled of Bernicia Click to view Earl Siward Biornsson of Northumbria & Aelfled of Bernicia in the family tree

Siward and Aelfled were married in a religious ceremony about 1033 in Northumberland, England.  They had a son and a daughter, named Waltheof and Sibyl.

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