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Battle of the Tagus

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For the 1384 battle, see Naval Battle of the Tejo.
Battle of the Tagus
Part of the Liberal Wars

The French fleet forcing the entrance of the Tagus, by Horace Vernet
Date11 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.

Background

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The accession of King Miguel I to the throne of Portugal and abolition of the Constitutional Charter had put the country under the rule of an absolutist monarch. Liberals challenged his rule, and the struggle of the Liberal Wars ensued. The government of Miguel I was hostile to France, and became even more so when the popular insurrection of the July Revolution deposed the absolutist Bourbon king Charles X, and established a constitutional monarchy in which Louis-Philippe had become "King of the French". Miguel refused to recognise the Monarchy of July,[2] while neither the French[3] nor the British[4] government recognised his.

In early 1831, a French citizen, Edmond Potentin Bonhomme was sentenced to public flogging, a fine and exile for allegedly profaning a church,[5] a claim that French officials dismissed as "they had good reason to believe that many of the statements it comprehends, have no other foundation than the bigotry and malevolence of the Portuguese priesthood".[6] Several other French citizen were similarly detained in what the French government judged to be arbitrary manners.[7]

The French consul in Lisbon, Cassas, was tasked to present a diplomatic demarche to the Portuguese government, but he was rebuffed as not having the diplomatic credentials of an ambassador.[3][7] Viscount d'Asseca requested a mediation of the British Foreign minister, Viscount Palmerston,[3] who advised the Portuguese to comply with French demands.[4] A squadron under Captain de Rabaudy, comprising the 60-gun frigate Melpomène[8] and the 20-gun brig Endymion, under Nonay, was sent to the mouth of the Tagus river to show the flag and give weight to the demands of the French consul.[9] They arrived on 16 March 1831.[10] Upon her departure from Brest, Melpomène ran aground on Basse Beuzec, and had to double back, leaving Endymion to continue her route. When Melpomène finally arrived on 16 May 1831, Endymion was already returning to France, with the consul aboard.[11] Rabaudy stated the purpose of his mission to Portuguese authorities and delivered the French ultimatum, demanding:

  1. the release of the two imprisoned Frenchmen and the annulment of their sentence
  2. an indemnity in their favour
  3. destitution of the judges responsible
  4. indemnities for a number of other Frenchmen
  5. that Frenchmen be only arrested with the consent of a French judge, as was their privilege at the time.

These demands had to be met 48 hours after reception.[11]

Portuguese authorities played for time. In consequence, Rabaudy's Melpomène started blockading Lisbon by preying upon shipping leaving and entering the Tagus, though their crew were immediately freed and sent ashore.[12] Melpomène was soon reinforced by a squadron under Captain Charmasson, of the 52-gun Sirène, escorted by the 18-gun corvettes Diligente and Églé, and the 20-gun brig Hussard. While some of the ships cruised off the mouth of the Tagus, the others were detached to Azores to hunt for a Portuguese Miguelist division that blockaded the Liberal controlled Terceira Island; on 3 June, these ships captured the 24-gun corvette Urania and the 6-gun fluyt Oreste,[13] but they failed to locate the rest of the Miguelist forces, and thus returned to the mouth of Tagus.[11]

In spite of the French blockade and their undermining of its war effort against Liberals, the Portuguese government refused to meet French demands, and the treatment of the French prisoners even deteriorated.[12] The French therefore decided to escalate the matter, and Henri de Rigny, French Minister of the Navy, appointed rear-Admiral Baron Albin Roussin to a 6-sail of the line squadron. Roussin was a veteran of the Mauritius campaign of 1809–1811, and had been honoured for his conduct at the Battle of Grand Port.[14]

Battle

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The mission of Rear-admiral Roussin was to sail to Tagus, with his flag on the 90-gun Suffren, and give the Portuguese authorities an ultimatum that demanded, in addition to that already given by Rabaudy, that the chief of the Portuguese police be dismissed; that all court sentences against French citizens be annulled; and that indemnities be paid to compensate for the costs induced by the expedition. The ultimatum expired 48 hours from reception, at which point the French forces would force the entrance of the Tagus, sail to Lisbon and bombard the city. Departed from Brest, the squadron arrived off the Tagus on 25 June, and stayed there waiting for the division inbound from Toulon, under Rear-admiral Hugon.[14]

A French frigate and brig under fire from Portuguese fortifications on the Tagus river.

On 31, the Portuguese government mobilised the warship on the Tagus, though only two frigates and smaller warships could be marshaled at once; the strongest asset on Tagus, the 74-gun Dom João VI, needed over a month of work worth of repairs, and the 52-gun frigate Amazona could not be readied before twenty days. This left only the 54-gun Diana and the 44-gun Pérola, with the 26-gun Dom João I and Lealdade, to oppose the much stronger French squadron.[8] In addition, all the ships that the Portuguese could muster were much under-handed.[3] The condition deteriorated on 1 July when Suffren and Melpomène chased the Lord Wellington, a Portuguese merchantman inbound from Bahia;[15] Lord Wellington fled under Fort Santo António to benefit from its protection. When the French ship approached, the fort opened fire, and a gunnery exchange broke out while the ships' boats were launched and captured the merchantman.[14][15] The French bombardment silenced the fort, killing five or six soldiers, and severely wounding thirty.[15]

On 6, Hugon's squadron arrived from Toulon. Being forced to inaction by unfavourable winds, Roussin attempted a last diplomatic demarche and on 10, he sent the 18-gun brig Dragon, under Commander Théodore Deloffre,[note 1][16] to present a last ultimatum; Dragon also carried letters for the ships of the Tagus and for foreign diplomatic missions in Lisbon, and was under strict orders not to remain at anchor more than 24 hours.[17] The new ultimatum comprised the same condition as the first, but added that the Portuguese government should compensate France for the price of the naval expedition, and threatened of a "de facto war".[18] Dragon returned to the French fleet the next day with a refusal,[19] though Santarem attempted to surrender his French prisoners to the British as a token concession.[20] Captain Vincent Moulac, of Algésiras, advised that the fleet attempt to force the entrance of the river and sail upstream to Lisbon.[21]

On 11, the winds had turned, and a North-North-West wind allowed for the expedition upstream. The French squadron manoeuvred to form a line of battle, and at 13:30, it sailed into the Southern pass. The French squadron sailed one by one in front of the forts, delivering broadsides at distances varying from 100 to 1000 metres, and reached Paço de Arcos in good order and with no serious damage. Roussin signaled his ships to sail on, but the two lead ships, Marengo and Algésiras, failed to spot the signals and dropped their anchor, as was initially planned to repair damage sustained during the forcing of the pass; seeing that the flagship Suffren sailed before them without stopping, they promptly put to sail and took a place in the French line, but this mistake put Suffren at the front of the line.[22]

The flagship Suffren, leading French line of battle, exchanges broadsides with Belém Tower moments before breaking into Lisbon.

Around 16:00, Suffren opened fire on the Belém Tower at a distance of 100 metres, soon followed by the rest of the squadron, and anchored in front of the Belém Palace while the other ships and frigates sailed on to the anchored Portuguese fleet. When the lead ship, Pallas, opened fire on the Portuguese squadron, all its ships struck,[23] without firing a shot.[24]

By 17:00, the entire French squadron was anchored before the docks of Lisbon, and Roussin sent his chief of staff, Lieutenant commander Charles Ollivier, to present the French ultimatum once again with a 2-hour delay.[1] The Portuguese government attempted once again to turn its prisoners over to British officials, but the offer was once again refused.[25] The Portuguese government caved in, and a treaty was signed on 14 July on Suffren by Castello Branco and Roussin,[1] with its dispositions published in the Lisbon Gazette on 15,[26] and the sums of money begin paid in cash by the 23.[27] With the ultimatum accepted by the Portuguese, Roussin sent most of the squadron to sea, staying in front of Lisbon with only Suffren, Pallas and Melpomène; the 58-gun frigate Guerrière, under Captain Kerdrain, rejoined him on 29.[23]

Squadrons

[edit]
Captain Rabaudy's squadron
Ship Rate Guns Navy Commander Casualties Notes
Killed Wounded Total
Melpomène First class frigate 60 Captain Rabaudy
Endymion Brig 20 Commander Nonay
No casualties[24]
Sources: Troude, p. 270
Rear admiral Roussin's Squadron
Ship Rate Guns Navy Commander Casualties Notes
Killed Wounded Total
Marengo Ship of the line 74 Captain Maillard Liscourt – - -
Algésiras Ship of the line 80 Captain Vincent Moulac – - -
Suffren Ship of the line 90 Rear-admiral Baron Albin Roussin
Captain Trotel 		– - - Flagship
Ville de Marseille Ship of the line 74 Captain Baron Lasusse – - -
Trident Ship of the line 74 Rear-admiral Baron Hugon
Captain Casy 		– - - Flag of Rear-admiral Baron Hugon
Alger Ship of the line 74 Captain Jacques Leblanc – - -
Pallas First rank frigate 60 Captain Forsans – - -
Melpomène First rank frigate 60 Captain de Rabaudy – - -
Didon First rank frigate 60 Captain Armand Buchet de Châteauville – - -
Diligente Corvette 18 Commander François Halley – - -
Églé Corvette 18 Commander Constant Raffy – - -
Perle Corvette 18 Commander Douglas[note 2] – - -
Hussard Brig 20 Commander Thoulon – - -
Dragon Brig 18 Commander Deloffre – - -
Endymion Brig 18 Commander Nonay – - -
3 killed, 11 wounded[1]
Sources: Troude, p. 274
Portuguese fleet in the Tagus
Ship Rate Guns Navy Commander Casualties Notes
Killed Wounded Total
Dom João VI Ship of the line 74 In need for heavy repair.[8] Unseaworthy at the time of the battle.[15] Captured, not taken by the French as in too poor a condition.[28] Returned to the Portuguese government.[27]
Diana Frigate 54 Taken into French service as Diane[29]
Pérola Frigate 46 Taken into French service as Perle[30]
Amazona Frigate 42 Unseaworthy at the time of the battle.[15] Taken into French service as Amazone[31]
Dom João I Corvette 24 Taken into French service as Dom João I[32]
Lealdade Corvette 24
Dom Pedro Corvette 18 Taken into French service as Dom Pedro[32]
Fevereira[8] Brig 10
Glória[8] Brig 10
Infante Sebastião (or Dom Sebastião[8]) Brig 10
Memória Brigantine 6
Casualties "trifling"[24]
Sources: Troude, p. 273

Key

  • A † symbol indicates that the officer was killed during the action or subsequently died of wounds received.
  • The ships are ordered in the sequence in which they formed up for battle.

Aftermath

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The treaty of 14 July specified that the French would return the ships captured before the attack on the Tagus, including the warships Orestes and Urania and the merchantmen with their cargo.[33][34] After a council of war on Trident, the French decided to also return the captured 74-gun Dom João VI as, being neither armed nor manned during the action, she did not belong to an opposing force.[27]

Nothing was said, however, of the fleet captured at Lisbon itself. The Portuguese government protested,[35] and Roussin proposed that the ships be re-purchased for 1.5 million cruzados,[36] or to return half the captured ships, in exchange for the release of 400 political prisoners.[28] When this offer was rejected, the ships in question were incorporated in the French fleet.[36]

The French squadron of Toulon departed on 25;[37] the prizes Diana, Amazone, Don João I and Don Pedro departed with on 12 with a brig, and the next day Perola, Lealdade, Saint Sebastian and Memoria followed.[38] The rest of the fleet eventually departed for Brest on 14 August, where it arrived on 4 September, leaving only Melpomène and Églé.[28][38]

In recognition for the deed, Roussin was promoted to Vice-admiral.[21][28]

The Miguelists would suffer a crushing defeat at the hands of the Liberals at the Battle of Cape St. Vincent two years later, ending the reign of Miguel I.

Notes and references

[edit]

Notes

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  1. ^ The House of Commons papers, p. 313, erroneously spell his name as "Theodore Delaffre"
  2. ^ Roche, p. 348, suggest that the name could have been Douglas or Jouglas.

References

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  1. ^ a b c d House of Commons papers, p. 332
  2. ^ House of Commons papers, p. 307
  3. ^ a b c d House of Commons papers, p. 296
  4. ^ a b House of Commons papers, p. 298
  5. ^ House of Commons papers, p. 299
  6. ^ Journals of the House of Commons, Volume 82; Volume 86
  7. ^ a b House of Commons papers, p. 288
  8. ^ a b c d e f House of Commons papers, p. 287
  9. ^ Troude, op. cit., p.270
  10. ^ Roche, op. cit., p. 304
  11. ^ a b c Troude, op. cit., p.271
  12. ^ a b House of Commons papers, p. 309
  13. ^ House of Commons papers, p. 312
  14. ^ a b c Troude, op. cit., p.272
  15. ^ a b c d e House of Commons papers, p. 311
  16. ^ Roche, p. 156
  17. ^ House of Commons papers, p. 313
  18. ^ House of Commons papers, p. 330
  19. ^ Troude, op. cit., p.273
  20. ^ House of Commons papers, p. 315
  21. ^ a b Levot, op. cit., p.465
  22. ^ Troude, op. cit., p.274
  23. ^ a b Troude, op. cit., p.275
  24. ^ a b c House of Commons papers, p. 316
  25. ^ House of Commons papers, p. 317
  26. ^ House of Commons papers, p. 318–320
  27. ^ a b c House of Commons papers, p. 331
  28. ^ a b c d Troude, op. cit., p. 276
  29. ^ Roche, op. cit., p. 150
  30. ^ Roche, op. cit., p. 349
  31. ^ Roche, op. cit., p. 37
  32. ^ a b Roche, op. cit., p. 154
  33. ^ House of Commons papers, p. 320
  34. ^ House of Commons papers, p. 335
  35. ^ House of Commons papers, p. 339
  36. ^ a b House of Commons papers, p. 348
  37. ^ House of Commons papers, p. 340
  38. ^ a b House of Commons papers, p. 349

Bibliography

[edit]
  • Roche, Jean-Michel (2005). Dictionnaire des bâtiments de la flotte de guerre française de Colbert à nos jours, 1671–1870. Group Retozel-Maury Millau. ISBN 978-2-9525917-0-6. OCLC 165892922.
  • Troude, Onésime-Joachim (1867). Batailles navales de la France. Vol. 4. Challamel ainé. pp. 160–162.
  • Levot, Prosper (1866). Les gloires maritimes de la France: notices biographiques sur les plus célèbres marins. Bertrand.
  • House of Commons papers. Vol. 20. Parliament. House of Commons. 1831.

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