BattlefieldsSiege of Dumbarton Castle 1309
Medieval

Siege of Dumbarton Castle 1309

1309
Dunbartonshire, Scotland
Also known as: Bruce takes Dumbarton 1309 · Dumbarton Castle captured 1309
Era
Medieval
Battle Type
Siege
Location
Dunbartonshire, Scotland
Status
Unregistered
The Combatants

Who Fought

Defeated
English garrison of Dumbarton Castle
Forces
English garrison of Dumbarton Castle
VS
Victor
Scotland (Robert the Bruce)
Forces
Bruce with Scottish siege force
Outcome
Bruce captured Dumbarton Castle, removing the last major English stronghold controlling the Clyde approaches to the Highlands
The Battle

History & Significance

Dumbarton Castle — on its great rock at the junction of the Clyde and Leven — commanded the sea approach to the Highlands and the gateway to the western isles. Its capture by Bruce in 1309 completed Scottish control of all western seaways. Combined with the Argyll campaign that broke the MacDougalls, the capture of Dumbarton gave Bruce mastery of western Scotland for the first time. The castle became a key Scottish royal fortress for centuries.

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