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BATTLE // July 11, 1831

Battle of the Tagus

Overview

The Battle of the Tagus took place on 11 July 1831 during the Liberal Wars. At the mouth of the Tagus river in Portugal, a French fleet attacked and subdued Miguelite fortifications with the aim of forcing the regime of Miguel I of Portugal to recognise the newly established July Monarchy in France. The damage to the forts defending access to the Tagus and the arrival of French warships at Lisbon forced Miguel's regime to cave in and comply with French demands.

Overview adapted from Wikipedia, licensed under CC BY-SA 4.0.

Commanders (1)

France

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Last verified June 2026
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