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Historical ConflictAlmeida

Siege of Almeida

Spain captured the key Portuguese fortress of Almeida in August 1762, the only major stronghold held by Spain at the end of the Seven Years' War in Iberia.

Duration & Scope

1762 ongoing

< 1 year

Key Facts

Date of fall
25 August 1762
Siege duration
9 days
British reinforcements
8,000 troops halted further Spanish advance
Returned to Portugal
Via Treaty of Paris (1763)

Strategic Narrative Overview

The southern Spanish column, in which Fernando Vélaz de Medrano y Bracamonte, 4th Marquess of Tabuérniga, played a leading role, blockaded and besieged Almeida, capturing it after nine days on 25 August 1762. A deeper Spanish advance was then checked by the arrival of 8,000 British troops and a disruption of Spanish supply lines at the Battle of Valencia de Alcántara, stalling the offensive.

01 / The Origins

During the Seven Years' War, France and Spain launched a coordinated offensive to overrun Portugal, Britain's longstanding ally. A northern Spanish force crossed from Galicia threatening Porto, while a southern force advanced from Ciudad Rodrigo toward the fortified city of Almeida. The campaign aimed to pressure Britain by striking at Portugal and was commanded overall by the Count of Aranda.

03 / The Outcome

Almeida remained the only major fortress in Spanish hands at the war's close. Under the 1763 Treaty of Paris, Spain returned Almeida to Portugal in exchange for Britain restoring Havana and Manila to Spain. The brief occupation had no lasting territorial effect, but the episode illustrated the interconnected global and Iberian dimensions of the Seven Years' War.

Belligerents & Mobilization Analysis

Side A

2 belligerents

SpainFrance
Key Commanders

Count of Aranda, Fernando Vélaz de Medrano y Bracamonte, 4th Marquess of Tabuérniga.

Side B

2 belligerents

PortugalGreat Britain
Peak Mobilized Forces~8K
Forces vs Casualties ratio
0Mobilized
Outcome
Spanish capture of Almeida; further advance halted by British forces; city returned to Portugal under Treaty of Paris (1763)

Kinetic Engagement Axis

Major engagements timeline (1762–present)Timeline of major military engagements plotted chronologically.1762present1762Siege of AlmeidaAllied1762Battle of Valenc…Side B

Scroll horizontally to view full axis. Events plotted relatively.

Side A victorySide B victoryInconclusiveDecisive / turning point

Location

Map of Almeida, PortugalMap of Almeida, PortugalAlmeida, Portugal