Siward Biornsson Northumberland
Birth date:
Birth place:
, , ,
 
Death date:
  BET 1055 AND 1056
Death place:
  , , ,

Northumberland Family

Parents:
Father: Hakon Ivarson
Mother: Mrs-Svend Ii (Elizabeth) Concubine 17
Spouse:
Spouse:
 
Siblings:
Canute IV of Denmark
Daughter Haraldsdottir
Helene (Gunhild) Svendsdatter of Denmark
Astrid
Ulf (Ubbe) Svendsson Prince of Denmark
Erik I Svendson
Bjorn Svandsson Prince of Denmark
Harald Iv Svendsson
Thorgils Svendsson Prince of Denmark
Erik I Egode King of Denmark
Erick I Svendsson the Evergood King of Denmark




Bjorn Svensson
Niels Svendssen
Sigrid Svensdotter

Siward Biornsson Northumberland
Children: