Siward Biornsson
Siward was born in 1005.  He died at the age of 50 in 1055.

 Lady  Aelfreda De Northumberia
Aelfreda was born about 0980 in Bernicia,Nortumbria,England.¹ 

 Lady Sybil De Northumberia
Sybil was born in 1009 in Northumberlandshire,England.¹   She died at the age of 31 in 1040.¹ 

 Earl Syward De Huntington
Syward was born about 1020 in Denmark.  He died in 1055 in York,Yorkshire,England.