On the 5th October, early in the evening, the French sallied with three hundred men. The attack was too successful; one hundred and fifty of the guard and working party were killed or wounded, the gabions overturned, the works at the lodgment injured, and the intrenching tools carried off.
That night, however, the damage was repaired; the sap was rapidly carried forward, and at last the British had got so close to the wall that their own howitzers ceased firing lest the workmen should be endangered by their shot. The guns on Saint Michael’s battery had also breached with good effect, and fifty feet of the parapet of the second line was completely laid in ruins. But, in effecting these successes, a heavy loss was inflicted on the besiegers, and of their originally small means for carrying on a siege, the few pieces of artillery they possessed at first, were now reduced to one serviceable gun.
The weather had also changed, and rain fell in quantities and filled the trenches. A spirit of discontent and indifference pervaded the army. The labour was unwillingly performed, the guards loosely kept, and Dubreton again sallied furiously, drove off the working party, destroyed the new parallel, carried away the tools, and occasioned a loss of more than two hundred men. Among the killed, none was lamented more than Colonel Cocks, who having obtained promotion most deservedly for previous gallantry, died at the head of his men, while rallying the fugitives and repelling the sally.
Three assaults had failed; but still the allied commander did not quit the place in despair. Preparations for another attempt were continued, and the exertions of the engineers, of whom one-half had fallen, were redoubled. Heated shot was tried against the White Church unsuccessfully; while that of San Roman was marked as the more vulnerable point, and a gallery commenced against it.
On the 17th, the great breach was again exposed by the fire of the British guns, and the ramparts on either side extensively damaged. A mine beneath the lower parallel was successfully exploded, and a lodgment effected in a cavalier,[14] from whence the French had kept up a destructive fire on the trenches. It was held but for a short time, as the enemy came down in force, and drove the besiegers from it. On the 18th, the breach was reported practicable, and an assault decided on, the signal arranged being the springing of the mine beneath the church of San Roman. That building was also to be assailed, while the old breach was to be attempted by escalade, and thus, and at the same moment, three distinct attacks would occupy the enemy’s attention.
[14] A Cavalier is a work in the body of a place, domineering the others by ten or twelve feet.
At half-past four the explosion of the mine gave the signal. A countermine was immediately sprung by the French, and between both, the church was partially destroyed, and Colonel Browne, with some Portuguese and Spanish troops, seized upon the ruined building. The Guards, who had volunteered a detachment, rushed through the old breach, escaladed the second line, and, in front of the third, encountered the French in considerable force, while two hundred of the German Legion, under Major Wurmb, carried the new breach, pushing up the hill, and fairly gaining the third line of the defences. Unfortunately, however, these daring and successful efforts were not supported with the promptness that was needed. The French reserves were instantly advanced; they came on in overwhelming force, cleared the breaches of the assailants, and drove them beyond the outer line, with the loss of two hundred officers and men.
San Roman was taken the following night by the French, and recovered again by the British. But with this affair the siege virtually terminated, and Lord Wellington, by an imperious necessity, was obliged to retire from a place of scarcely third-rate character, after four attacks by assault, and a loss of two thousand men.
In war, the bravest and the most prudent measures are frequently marred or made by fortune. Lord Wellington, with very insufficient means, attempted the reduction of Burgos; and although skill and gallantry were displayed in every essay, obstacles arose which checked the most daring efforts; and all that science and determination could effect were vainly tried to overcome difficulties physically insurmountable. Had Wellington possessed the requisite matériel for the conduct of a siege, Burgos must have been taken in a week.
But let justice be done to its defenders. Much was expected from them, and assuredly, the governor and garrison of the castle of Burgos realised the high reliance placed upon their skill and heroism by their countrymen.