Bjorn (unknown) 
(daughter) Siward Asmund
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| Bjorn (unknown) |
| (daughter) Siward Asmund
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Bjorn (Biorn) Ulfiusson (Estridsen)
??, Denmark - 1045/1049
(unknown)
abt 0980, Denmark - ??
Married: 1033 - Northumberland, England
(daughter) Bjornsdottir
abt 1010, Denmark - ??
Siward Bjornsson, earl of Northumbria
abt 1020, Denmark - 1055, Saint-Olave's Church, Yorkshire England
Asmund Bjornsen
abt 1047, Denmark - abt 1065