Atlas of Battles

siege, medieval

Siege of Rennes

Siege of Rennes was a siege conducted on 3 October 1356 at Rennes, in what is now France; it lasted 9 months. It was part of the War of the Breton Succession, which ran from 1341 to 1365. The recorded result: French victory.

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Map of the siege of Rennes by the Duke of Lancaster in 1356-1357
Map of the siege of Rennes by the Duke of Lancaster in 1356-1357. Ash Crow, CC BY-SA 3.0, via Wikimedia Commons.
Fought3 October 1356lasted 9 months
WhereRennes, France48.114N, 1.681W
OutcomeFrench victory
Belligerents20px House of Montfort, Brittany; 20px Kingdom of Englandagainst20px House of Blois, Brittany; 20px Kingdom of France
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, 136413411364Siege of Rennes, 1356
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

Date3 October 1356
to 5 July 1357
PlaceRennes, France
48.114N, 1.681W
KindSiege, medieval
Strength1,500–4,000 men
Commanders
  • Henry of Grosmont, Duke of Lancaster
Siege of RennesSiege of RennesBattle of LifréBattle of PiréBattle of IffsBattle of Saint-Aubin-du-CormierBattle of Saint-Aubin-du-CormierBattle of PiréBattle of IffsNantesToursCaenLe MansLorientAngersSt.-Brieuc100 km48.114N, 1.681W
The recorded site, 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 1356

Siege of Rennes 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 Q1822262, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Siege of Rennes (1356–1357), revision 1370744725, 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.