Siward BIORNSSON, Earl of Northumberland^[1]

Abt 1020 - 1055  (35 years)

• Name	Siward BIORNSSON
  Suffix	Earl of Northumberland
  Birth	Abt 1020	Of, , , Denmark
  Gender	Male
  Death	1055	, York, Yorkshire, England
  Burial	Galmanho Abby, York, Yorkshire, England
  Person ID	I13670	Coombs
  Last Modified	1 Jun 2016

  
  

  Father	Biorn (Bjorn) ULFIUSSON (ESTRIDSEN), EARL IN DENMARK,   b. Abt 1021, , , , Of Denmark d. 1045 OR 1049 (Age 28 years)
  Mother	Mrs-Biorn ULSIUSSON,   b. Abt 980, Of, , , Denmark d. Yes, date unknown
  Family ID	F5413	Group Sheet  |  Family Chart

  
  

  Father	Biorn ULSIUSSON, Earl In Denmark,   b. Abt 975, of, , Denmark d. Yes, date unknown
  Family ID	F936	Group Sheet  |  Family Chart

  
  

  Family 1	Aelfled,   b. Abt 1031, of, Northumberland, England d. Yes, date unknown
  Children	1. Waltheof II,   b. Abt 1045, of, Northumberland, England d. 31 May 1076, Winchester, Hampshire, England (Age 31 years)   2. Sybil, Queen of Scotland,   b. Abt 1048, of, Northumberland, England d. Yes, date unknown   3. Osbeorn,   b. Abt 1050, of, Northumberland, England d. Yes, date unknown
  Family ID	F935	Group Sheet  |  Family Chart
  Last Modified	2 Feb 2026

  
  

  Family 2	Godiva, Countess of Northumberland
  Marriage	Abt 1044	Of, , , England
  Family ID	F5348	Group Sheet  |  Family Chart
  Last Modified	2 Feb 2026

  
  

• Notes

  Earl of Northumberland, Northampton, and Huntingdon.

  
  

• Sources

  [S1] Ancestral File (TM).