Battle of the Tagus

Battle of the Tagus
Part of the Liberal Wars
The French fleet forcing the entrance of the Tagus, by Horace Vernet
Date 11 July 1831 Location Mouth of the Tagus river Result French victory
Belligerents
France	Miguelites
Commanders and leaders
Albin Roussin	Unknown
Strength
6 ships of the line 3 frigates 3 corvettes	1 ship of the line 3 frigates 3 corvettes 3 brigs 1 brigantine
Casualties and losses
3 killed 11 wounded[1]	1 ship of the line captured 3 frigates captured 3 corvettes captured 3 brigs captured 1 brigantine captured

The Battle of the Tagus was a naval engagement that took place on 11 July 1831 at the mouth of the Tagus river, in Portugal. A French fleet attacked and subdued Portuguese fortifications at the entrance of the Tagus, with the aim to strong-arm the government of Miguel I into recognising the newly established Kingdom of the French. The damage to the forts defending access to the Tagus and the arrival of French warships at Lisbon forced the Portuguese to cave in and comply with French demands.