Siege of Cádiz
The Siege of Cádiz was a siege of the large Spanish naval base of Cádiz by a French army from February 5, 1810 to August 24, 1812 during the Peninsular War. Following the occupation of Seville, Cádiz became the Spanish seat of power, and was targeted by 70,000 French troops under the command of the Marshals Claude Victor and Nicolas Jean de Dieu Soult for one of the most important sieges of the war. Defending the city were 2,000 Spanish troops who, as the siege progressed, received aid from 10,000 Spanish reinforcements as well as British and Portuguese troops.
During the siege, which lasted two and a half years, the Cortes Generales government in Cadiz (the Cádiz Cortes) drew up a new constitution to reduce the strength of the monarchy (a constitution eventually revoked by Fernando VII).
In October 1810, a mixed Anglo-Spanish relief force embarked on a disastrous landing at Fuengirola. A second relief attempt was made at Tarifa in 1811. However, despite defeating a detached French force of 15,000–20,000 under Marshal Victor at the Battle of Barrosa, the siege was not lifted.
In 1812, the Battle of Salamanca eventually forced the French troops to retreat from Andalusia, for fear of being cut off by the allied armies. Defeat at Cádiz contributed decisively to the liberation of Spain from French occupation, due to the survival of the Spanish government and the use of Cádiz as a jump off point for the Allied forces.
Prelude to the battle
In the early 19th century, war was brewing between Napoleon I and the Russian Tsar Alexander I, and Napoleon saw the shared interests of Britain and Russia in defeating him as a threat. Napoleon's advisor, the Duke of Cadore, recommended that the ports of Europe be closed to the British, stating that "Once in Cadiz, Sire, you will be in a position either to break or strengthen the bonds with Russia".
Soult and his French army invaded Portugal in 1809, but were beaten by Wellesley at Oporto on May 12. The British and Spanish armies advanced into mainland Spain, however a lack of faith in the Spanish army forced Arthur Wellesley to retreat back into Portugal after Spanish defeats in the Battle of Ocana and Battle of Alba de Tormes. By 1810, the war had reached a stalemate. Portuguese and Spanish positions were strengthened by Wellesley with the construction of the Lines of Torres Vedras, and the remainder of the Spanish forces was forced back to defend the Spanish government at Cádiz against Soult's Army of Andalusia.
Siege of Cádiz
The port of Cádiz was surrounded on land by the armies of Soult and Victor, in three entrenched positions at Chiclana, Puerto Real and Santa Maria, positioned in a semicircle around the city. In the case of the former position, only an area of marshland separated the forces. The French initially sent an envoy with a demand for surrender, however this was refused. The resulting bombardment of the Spanish coastal city involved some of the largest artillery pieces in existence at the time, including Grand Mortars, which were so large they had to be abandoned when the French eventually retreated, and fired projectiles to distances previously thought impossible, some up to 3 miles in range. (The Grand Mortar was placed in St. James's Park in London as a gift to the British in honour of the Duke of Wellington.) The French continued to bombard Cadiz through to the end of 1810, however the extreme distance lessened their effect.
The terrain surrounding the strong fortifications of Cádiz proved difficult for the French to attack, and the French also suffered from a lack of supplies, particularly ammunition, and from continuous guerrilla raiding parties attacking the rear of their siege lines and their internal communications with Andalusia. On many occasions, the French were forced to send escorts of 150–200 men to guard couriers and supply convoys in the hinterland. So great were the difficulties that one historian judges that;
The French siege of Cadiz was largely illusory. There was no real hope that they would ever take the place. Far more real was the siege of the French army in Andalusia. Spanish forces from the mountains of Murcia constantly harried the eastern part of the province. They were frequently defeated but always reformed. A ragged army under General Ballesteros usually operated within Andalusia itself. Soult repeatedly sent columns against it. It always escaped ... French dominion was secure only in the plains of the Guadalquivir and in Seville.
French reinforcements continued to arrive through to April 20, and the capture of an outer Spanish fort guarding the road through to the Puerto Real helped to facilitate the arrival of these forces. This captured fort also provided the French which a vantage point to shell ships coming in and out of the besieged Spanish port.
During 1811, Victor's force was continually diminished because of requests for reinforcement from Soult to aid his siege of Badajoz. This reduction in men, which brought the French numbers down to between 20,000–15,000, encouraged the defenders of Cádiz to attempt a breakout. A sortie of 4,000 Spanish troops, under the command of General José de Zayas, was arranged in conjunction with the arrival of an Anglo-Spanish relief army of around 16,000 troops that landed 50 miles to the south in Tarifa. This Anglo-Spanish force was under the overall command of Spanish General Manuel La Peña, with the British contingent being led by Lieutenant-General Sir Thomas Graham. On February 21, 1811 the force set sail for Tarifa, and eventually landed at Algeciras on February 23. Eventually marching towards Cádiz on February 28, the force met a French detachment of two French divisions under Victor at Barrosa. While the battle was a tactical victory for the Allied force, with a French regimental eagle captured, it was strategically indecisive.
Smaller sorties of 2,000–3,000 men continued to operate out of Cadiz from April to August 1811. On October 26, British naval gunboats from Gibraltar also destroyed French positions at St. Mary's killing French artillery commander Alexandre-Antoine Hureau de Sénarmont. An attempt by Victor to crush the small Anglo-Spanish garrison at Tarifa over the winter of 1811–1812 was frustrated by torrential rains and an obstinate defence, marking an end to French operations against the city's outer works.
On July 22, 1812, Wellesley won a tactical victory over Auguste Marmont at Salamanca. The Spanish, British and Portuguese then entered Madrid on August 6 and advanced towards Burgos. Realising that his army was in danger of being cut off, Soult ordered a retreat from Cádiz set for August 24. After a long artillery barrage, the French placed together the muzzles of over 600 cannons, to destroy them. While these guns were rendered unusable to the Spanish and British, the Allied forces did capture 30 gunboats and a large quantity of stores.
- The siege of Cádiz features prominently in Bernard Cornwell's Sharpe's Fury, in which Richard Sharpe is forced to help defend the city from the French before going on to take part in the Battle of Barrosa.
- Arturo Pérez-Reverte's El asedio is a murder mystery set in Cádiz during the siege.
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