
| Name | Siward (Sigurd)-Earl of Northumbria of Northumbria | |
| Birth | 1000 | Perth, Perthshire, Scotland, United Kingdom |
| Gender | Male | |
| _FSFTID | G91P-VVH | |
| _UID | 11F9333F7E6B4C4FBF9E69058B2FD0FD5213 | |
| Death | 26 Mar 1055 | York, Yorkshire, England, United Kingdom |
| Burial | York, Yorkshire, England, United Kingdom |
|
| Person ID | I29225 | Ken Tree |
| Last Modified | 3 Nov 2019 | |
| Father | Ulf Thorgilsson, b. Abt 988 d. 31 Dec 1026, Roskilde, Denmark (Age 38 years) | |
| Mother | Estrid Svendsdatter, b. Abt 990, Roskilde, Denmark d. From 1057 to 1073, Roskilde, Denmark (Age 67 years) | |
| Marriage | 1016 | Roskilde, Denmark |
| _UID | 3A202EA50117194D86D4BB1449E1EDA28D22 | |
| Family ID | F13588 | Group Sheet | Family Chart |
| Family | Aelfled ( Elfleda) Of Bernicia, Countess of Northumberland, b. Abt 1040, England, United Kingdom d. DECEASED | |
| Marriage | 1055 | Northumbria, England |
| _UID | 97167C5F16509B4EA4654250B244F4E23EF6 | |
| Family ID | F13593 | Group Sheet | Family Chart |
| Last Modified | 1 Apr 2026 | |