Nielsen Hayden genealogy
Guillaume "Longue Epee", Leader of the Normans of Rouen
- 942-
Name Guillaume "Longue Epee" Suffix Leader of the Normans of Rouen Birth Overseas 
[1] Gender Male Death 16 Dec 942 Picquigny, Picardy, France [2, 3] Alternate death 17 Dec 942 Picquigny, Picardy, France [1] 
Siblings1 sibling Person ID I3107 Ancestry of PNH, TNH, and others | Ancestor of AP, Ancestor of AW, Ancestor of DDB, Ancestor of DGH, Ancestor of DK, Ancestor of EK, Ancestor of GFS, Ancestor of JMF, Ancestor of JTS, Ancestor of LD, Ancestor of LDN, Ancestor of LMW, Ancestor of TNH, Ancestor of TSW, Ancestor of TWK, Ancestor of UKL, Ancestor of WPF Last Modified 6 Jan 2018
Father Rollo d. Between 928 and 933 Mother Poppa Family ID F1762 Group Sheet | Family Chart
Family 1 Luitgarde de Vermandois d. Aft 978 Family ID F4639 Group Sheet | Family Chart Last Modified 18 Apr 2024
Family 2 Sprota Children + 1. Richard I, Leader of the Normans of Rouen, b. Between 931 and 932, Fécamp, Normandy, France d. 21 Nov 996, Fécamp, Normandy, France (Age ~ 65 years)Family ID F3986 Group Sheet | Family Chart Last Modified 18 Apr 2024
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Notes - William "Longsword".
Says The Henry Project about his birth "overseas": "[I].e., not on the European mainland, and therefore possibly in Britain, Ireland, Scandinavia, or one of the islands held by Vikings (Orkneys, Hebrides, Man, etc.), all plausible places for the son of a Viking to be born."
Assassinated, possibly by or at the instigation of Arnulf/Arnulph/Arnoul "The Old", Count of Flanders.
- William "Longsword".
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Sources - [S91] The Henry Project: The Ancestors of King Henry II of England, by Stewart Baldwin, Todd A. Farmerie, and Peter Stewart.
- [S1342] Peter Stewart, 9 Jul 2016, post to soc.genealogy.medieval.
- [S764] Nathaniel L. Taylor, "Dynastic Chronology: Western Europe, X - XIII Centuries.".
- [S91] The Henry Project: The Ancestors of King Henry II of England, by Stewart Baldwin, Todd A. Farmerie, and Peter Stewart.