Atlas of Battles

battle, notable, medieval

Battle of Brissarthe

Battle of Brissarthe was a battle fought on 2 July AD 866 at Brissarthe, in what is now France. The recorded result: Breton-Viking victory.

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Painting of the Battle of Brissarthe
Painting of the Battle of Brissarthe. Henri Lehmann, Public domain, via Wikimedia Commons.
Fought2 July AD 866
WhereBrissarthe, France47.700N, 0.454W
OutcomeBreton-Viking victory
BelligerentsWest FranciaagainstKingdom of Brittany; Danish Vikings

Record

Date2 July AD 866
PlaceBrissarthe, France
47.700N, 0.454W
KindBattle, medieval
Territorial changeCotentin and possibly the Avranchin ceded to Brittany
Commanders
  • Robert the Strong
  • Ranulf I of Aquitaine
  • Gauzfrid, Count of Maine
  • Hervé of Maine
  • Salomon, King of Brittany
  • Hastein
Battle of BrissartheBattle of BrissartheBattle of La BrossinièreBattle of BalléeSiege of AngersBattle of La FlecheBattle of SegréBattle of BalléeSiege of AngersBattle of SegréRennesNantesOrléansPoitierSt.-Brieuc100 km47.700N, 0.454W
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

Elsewhere in AD 866

Battle of Brissarthe is one of 169 engagements of the 9th century in the atlas and one of 1,383 in present-day France.

Sources

Identity, coordinates, dates and the war from Wikidata Q1542647, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Brissarthe, revision 1370435226, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.