| Male BIORNSSON Siward |
| Birth | Abt 1020 | Of, , , Denmark  |
| Death | 1055 | , York, Yorkshire, England |
| Burial | Galmanho Abby, York, Yorkshire, England |
|
| Marriage | Abt 1033 | Of, , Northumberland, England |
| Father | ||
| Mother | ||
| Female BERNICIA Aelfled (Elfleda) Of |
| Birth | Abt 1031 | Of, Bernicia, Northumbria, England |
| Death | ||
| Burial | ||
| Father | ||
| Mother | ||
| Male + NORTHUMBERLAND Waltheof Earl Of |
| Birth | Abt 1046 | Of, , Northumberland, England |
| Christening | (minor-1055) |
|
| Death | 31 May 1076 | (spm) |
| Burial | Jun 1076 | , Crowland, Lincolnshire, England |
| Spouse | BOULOGNE Judith Of | F1082 | |
| Marriage | 1070 | Of, , Artois, France |
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