TheBattle of Mortemerwas a defeat forHenry I of Francewhen he led an army against his vassal,William the Bastard, Duke of Normandy[a]in 1054. William was eventually to become known as William the Conqueror after his successful invasion and conquest of England.

Battle of Mortemer

Depiction of the battle from a 14th Century parchment
Date1054
Location
Result Norman victory
Belligerents
Kingdom of France Duchy of Normandy
Commanders and leaders
Odo of France(POW)
Renaud, Count of Clermont
Guy, Count of Ponthieu(POW)
Waleran of Ponthieu
Robert, Count of Eu
Hugh of Gournay
Walter Giffard
Roger of Mortemer
William de Warenne

Background

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William the Bastard[a]became Duke of Normandy as a boy. His reign did not start well, and he had to experience twenty years of internal strife.[2]The chroniclerWilliam of Jumiègesreported that the duke's guardian, his teacher and his steward were all killed by rebels. Members of William's extended family attempted to unseat him. In 1046 there was a rebellion led byGuy of Burgundy,William's cousin. William defeated the rebels at theBattle of Val-ès-Dunesin 1047, with the support of Henry I of France.[2]

The battle

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The French king had supported William at the Battle of Val-ès-Dunes, but in 1052 he decided to oppose William and led an alliance of French magnates against him.[2]A large force under Odo, brother to the king, came from north-eastern France along with troops under Renaud, Count of Clermont,[3]andGuy, Count of Ponthieu.This second force entered Eastern Normandy and began widespread devastation.[4]

While Duke William confronted the French king to the west of the Seine River, an allied force of Norman barons led byRobert, Count of Eu,Hugh of Gournay,Walter Giffard,Roger of Mortemer,and the youngWilliam de Warennecame out of their own lands to stop the incursion by Count Odo and Count Rainald.[4]

The French force was widely scattered in its depredations of rape and pillage in the Norman lands and was an easy target for the Norman forces of Robert, Count of Eu. The fierce engagement lasted many hours, but the French left with heavy losses. Guy, Count of Ponthieu, was captured during the course of the battle, as was the father ofGuibert of Nogent,while Waleran of Ponthieu, brother ofGuy I,the Count of Ponthieu was killed.[5]

All these events were viewed by the French king from his vantage point on Bassenbourg Hill just across the river. He withdrew the remainder of his forces in "dismay" and never invaded Normandy again.[6]

After the defeats of 1052–1054 the rebellious Norman lords were exiled, the Norman lands of the Counts of Pointhieu were confiscated, and Guy, Count of Ponthieu swore homage to William after two years' imprisonment.[5]

Notes

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  1. ^abWilliam was regularly described asbastardus(bastard) in non-Norman contemporary sources. He was the illegitimate son ofRichard II, Duke of Normandy.[1]

Citations

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  1. ^Bates 2004.
  2. ^abcPotts 2003,p. 32.
  3. ^Geary 2015,p. 319.
  4. ^abHill 2015,p. 42.
  5. ^abTanner 2004,pp. 95–96.
  6. ^Hill 2015,p. 43.

References

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  • Bates, David (2004). "William I [known as William the Conqueror]".Oxford Dictionary of National Biography(online ed.). Oxford University Press.doi:10.1093/ref:odnb/29448.(Subscription orUK public library membershiprequired.)
  • Geary, Patrick J., ed. (2015). "The Later Middle Ages".Readings in Medieval History.Vol. II (5 ed.). University of Toronto Press.ISBN978-14-42-63438-1.
  • Hill, Paul (2015).The Norman Commanders: Masters of Warfare 911-1135.Barnsley: Pen & Sword Military.ISBN978-1-78346-228-5.
  • Potts, Cassandra (2003). Harper-Bill, Christopher; Van Houts, Elisabeth (eds.).A Companion to the Anglo-Norman World.Suffolk, England: Boydell Press.ISBN978-14-42-63436-7.
  • Tanner, Heather J. (2004).Families, Friends and Allies: Boulogne and Politics in Northern France and England, C.879-1160.Leiden, The Netherlands: Brill Academic Publishers.ISBN978-90-04-13243-6.

49°35′00″N2°40′00″E/ 49.5833°N 2.6667°E/49.5833; 2.6667