All photos in this post were taken by myself when I visited the battlefields of Wellington’s campaigns of 1809-12 in a tour led by Ian Fletcher. I have no connection with Ian Fletcher Battlefield Tours except as a satisfied and repeat customer.
A successful invasion of Spain from Portugal required the invade to hold both Ciudad Rodrigo and Badajoz, which controlled the north and south routes respectively between the two countries.
After taking Cuidad Rodrigo, Wellington moved south to siege Badajoz. He had lacked a proper siege train earlier in his campaigns but now had one consisting of 52 guns, including 12 24 pounders, 16 24 pounder howitzers and 18 Russian 18 pounders, and many other supplies. It arrived at Elvas on 8 March. The Russian guns presented some supply problems as they could not take British 18 pounder shot, but sufficient ammunition for them was found.
Although Wellington now had an adequate siege train, Britain still lacked specialist sappers and miners, meaning that infantrymen had to carry out work that they were not trained to do, and which was tiring and dangerous. The Royal Engineers then consisted solely of officers. They had recently been supplemented by 115 Royal Military Artificers; Ian Fletcher’s history of the siege of Badajoz points out that this was far too few.
Most of Wellington’s army was also at Elvas by 16 March, except two Portuguese brigades that arrived a couple of days later and the 1st Hussars of the King’s German Legion, which were at Ciudad Rodrigo.
Wellington could leave 15,000 men to invest Badajoz and deploy 40,000 against Soult‘s southern French army of 25,000. The risk is was that Marmont moved his army south. Wellington thought that it was likely that Marmont would do so, but not for 3-4 weeks. This meant that he could capture Ciudad Rodrigo, but he could not take his time in doing so. In fact, Napoleon did not allow Marmont to move until 27 March.
Many of the inhabitants of Badajoz, especially the richer ones, had fled, reducing the population from 16,000 before the war to 4,000. General Armand Phillipon, the governor of Badajoz had improved the defences, including building a new lunette, a small fortification, called Fort Picurina and repairing the damage inflicting on Fort San Christobal in the 1811 siege. His garrison of 5,000 men, including 700 non-combatants, was too few.
The siege began on 16 March. A pontoon bridge was built across the River Guadiana; Wellington did not intend to attack the San Christobal. The first parallel was dug in front of Fort Picurina on the night of 17-18 March.
The attackers were hampered by bad weather and by an aggressive defence. Phillipon conducted frequent sorties and offered bounties to Frenchmen who captured entrenching tools. On 19 March Colonel Richard Fletcher, commanding Wellington’s Royal Engineers, was wounded in a French sortie
On 22 March heavy rain caused the Guadiana to flood, sweeping away the pontoon bridge. The break to communications between the two banks of the river threatened to end the siege, but the weather improved and the bridge was repaired the next day.
Fort Picurina was invested by 5th Division on 24 March and successfully assaulted the next day by men of 3rd and Light Divisions; casualties were heavy. The ladders were too short to scale the walls but were used to bridge ditches. A party of the 88th Foot forced their way through an embrasure and a detachment of the 83rd entered by a salient angle where artillery had damaged the palisades. The siege batteries were able to fire on the bastions by 31 March.
Wellington wanted to force the garrison to surrender rather than storming the fortress, but Soult’s advance forced him to order the assault for the evening of 5 April. Fletcher, recovered from his wound, said that there were too many obstacles in the two breaches and wanted a third, so the attack was postponed.
The third breach was made by 4 pm the next day and Wellington ordered the attack for 7:30 pm. It was impossible to be ready in time and it was postponed until 10 pm, by when the French had improved the defences. The British made an error in not destroying the counterscarp, or outer wall of the ditch; it should have been blown into the ditch, making it easier to cross.
The French filled the breaches with chevaux de frise, made of sabres, fascines, sandbags, woolpacks, planks studded with 12 inch spikes chained to the ground and explosives.
The main attack on the breaches to the south east was to come from the 4th Division at La Trinidad and the Light Division at Santa Maria. General Sir Thomas Picton‘s 3rd Division was to take the castle by escalade from the east. The 5th Division was to demonstrate against the Pardaleras and, if feasible, escalade the San Vincente. A Guards detachment was to storm the San Roque and Power’s Portuguese Brigade demonstrate against the San Christobal.
The attacks on the breaches were beaten off, with heavy casualties. By 1:30 am Wellington had realised that further assaults were pointless. He was then informed that Picton had taken the castle. Picton’s initial attacks had failed. He was wounded and command passed to General Sir James Kempt. Kempt was wounded and Picton took command back
An hour after the initial assault Lt-Col Ridge of the 5th led an attack at a point where the wall was a little lower and an embrasure offered some protection. He got onto the wall and his troops followed. Ridge was killed but the British were in the castle. Phillipon had hoped to make his last stand there. Lt McPherson of the 45th lowered the French flag and, in the absence of a British one, raised his tunic on the flagpole.
A French counter-attack, using troops from the San Vicente, failed as more British troops crossed the wall. The British were then able to take the San Vicente.
Phillipon launched a cavalry charge by around 40 dragoons, which failed. He escaped through the Gate of Las Palmas to San Christobal with about 50 men. A few French troops at the breaches withdrew into houses and continued the fight until dawn, but most dispersed or surrendered.
At 2 am Wellington ordered another attack on the breaches by the 4th and Light Divisions, who crossed them without opposition. Some fighting continued, but most of the French surrendered.
The British troops now indulged in an orgy of rape, drunkenness and pillage. Most of the victims were Spanish civilians. 3,500 of the 5,000 French garrison were taken prisoner.
Phillipon surrendered on the morning of April 7. Wellington entered Badajoz and received a drunken salute from some of his men. He ordered the erection of a gallows, but it does not appear to have been used.
Juana Maria de Los Dolores de Leon and her sister were rescued by British officers. She married Harry Smith, one of them, and became the Lady Smith after whom the Ladysmith in South Africa is named. Johnny Kincaid, one of Smith’s comrades, claimed in his memoirs that it was him rather than Smith who rescued the girls.
Once the looting had ended the wounded could be cared for. Wellington’s army suffered 5,000 casualties in the siege, 3,000 of them in the assault.
Phillipon fought a good defence but was let down by his superiors. Marmont and Soult became involved in unnecessary actions with local Spanish forces when they should have marched straight to Badajoz.
The Royal Corps of Miners and Sappers was founded on 23 April in order to provide the British Army with specialist troops for siege warfare, but they were not able to make any impact until the siege of San Sebastian in 1813. Even then there were too few of them.
Armand Phillipon escaped, served in Russia and Germany, retired from active service in September 1813 and later made his peace with the Bourbons
 Ian Fletcher, In Hell Before Daylight: The Siege and Storming of the Fortress of Badajoz, 16 March – 6 April 1812 (Chalford Stroud: Spellmount, 2008), p. 22. This description of the siege is largely based on this book.