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Female * Sybil Of Northumberland Click to view * Sybil Of Northumberland in the family tree

* Sybil's father was * Siward Biornsson and her mother was * Aelfled Of Bernecia.  Her paternal grandfather was * Bjorn Ulfiusson; her maternal grandfather was * Aldred Of Bernecia. She had a brother named * Waltheof.  She died about 1040.


* Sybil's family with King Of Scots * Duncan I MacCrinan

‌* Sybil and * Duncan I were married in a religious ceremony about 1030.  They had two sons named * Malcolm III and * Donald III 'The Fair'.

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