| Name | William Longsword | |
| Suffix | Count of Rouen | |
| Birth | Abt. 893 | |
| Gender | Male | |
| Death | 17 Dec 942 | |
| Person ID | I320142938023 | Hurst Improbable Family Tree |
| Last Modified | 11 Feb 2022 | |
| Father | Robert Rollo Ragnvaldsson, The Dane, of Normandy, b. Abt. 846, Maer, Nord-Trondelag, Norway d. Abt. 930, Rouen, Seine-Maritime, Haute-Normandie, France (Age 84 years) | |
| Mother | Poppa, of Bayeux | |
| Family ID | F634 | Group Sheet | Family Chart |
| Family 1 | Sprota | |||
| Children |
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| Family ID | F526 | Group Sheet | Family Chart | ||
| Last Modified | 11 Feb 2022 | |||
| Family 2 | Luitgarde, of Vermandois, b. Abt. 914 d. 9 Feb 978 (Age 64 years) | |
| Family ID | F525 | Group Sheet | Family Chart |
| Last Modified | 11 Feb 2022 | |