Atlas of Battles

battle, notable, medieval

Battle of La Roche-Derrien

Battle of La Roche-Derrien was a battle fought in 1347 in what is now France. Its exact site is not recorded; the atlas places it at its recorded location. It was part of the War of the Breton Succession, which ran from 1341 to 1365. The recorded result: Anglo-Breton victory. Recorded strength: 1,000 against 4,000–5,000.

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Fought1347
WhereFrance48.746N, 3.260W, placed at the location, approximate
OutcomeAnglo-Breton victory
BelligerentsHouse of Montfort, Brittany; Kingdom of EnglandagainstHouse of Blois, Brittany; Kingdom of France
Casualties and lossesUnknownandUnknown
Part ofWar of the Breton Succession1341 to 1365

Where it sits in the War of the Breton Succession

Battle of Champtoceaux, 1341Siege of Vannes, 1342Battle of Quimperlé, 1342Siege of Hennebont, 1342Battle of Deez Nutz, 1342Battle of Morlaix, 1342Battle of Cadoret, 1345Battle of St Pol de Léon, 1346Battle of La Roche-Derrien, 1347Combat of the Thirty, 1351Battle of Mauron, 1352Battle of Montmuran, 1354Siege of Rennes, 1356Battle of Auray, 136413411364Battle of La Roche-Derrien, 1347
14 placed engagements of the War of the Breton Succession in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date1347 (year precision)
PlaceFrance
48.746N, 3.260W
KindBattle, medieval
Strength1,0004,000–5,000
Casualties and lossesUnknownUnknown
Commanders
  • Thomas Dagworth
Battle of La Roche-DerrienBattle of La Roche-DerrienBattle of Mario TownBattle of Sept-ÎlesBattle of MorlaixSiege of MorlaixBattle of QuintinBattle of Sept-ÎlesBattle of QuintinRennesBrestLorientCherbourg100 km48.746N, 3.260W
Placed at its recorded location; the exact site is not recorded. with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

Nearest engagements

In the same war

Elsewhere in 1347

Battle of La Roche-Derrien is one of 566 engagements of the 14th century in the atlas and one of 1,383 in present-day France.

Sources

Identity, coordinates, dates and the war from Wikidata Q1575537, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of La Roche-Derrien, revision 1370446817, 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.