A history of the Peninsular War, Vol. 2, Jan.-Sep. 1809

by Charles Oman

Lannes could not fail to see that if he committed himself to the final assault on Saragossa, and entangled the 3rd Corps in street-fighting, he might find himself assailed from the rear on all points of his lines. There were no troops whatever in front of Saragossa to form a ‘covering-force’ to beat off the insurgents, if they should come down upon his camps while he was storming the city, for the 3rd Corps and Gazan’s division had now only 20,000 infantry for the conduct of the siege.

Accordingly the Marshal resolved to undo the Emperor’s arrangements for keeping up the line of communication with Madrid, and to draw in Mortier, with Suchet’s strong and intact division, from Calatayud, where he had been lying for the last three weeks. This was the only possible force which he could use to provide himself with a covering army. The touch with Madrid, a thing of comparatively minor importance, had to be sacrificed, except so far as it could be kept up by the division of Dessolles, which had now come back from the pursuit of Sir John Moore, and had pushed detachments back to its old posts at Sigüenza and Guadalajara.

Mortier therefore evacuated Calatayud by the orders of Lannes, and came back to the Ebro: passing behind the besieging army he crossed the river and took post at Perdiguera with 10,000 men, facing the levies of Perena in the direction of Huesca. It was only when he had made certain of having this powerful reinforcement close at hand, ready to deal with any interference from without, that Lannes dared to proceed with the assault. At the same time that Mortier arrived at Perdiguera, he sent out Wathier, with two battalions and two regiments of cavalry, to deal with the insurgents of the Lower Ebro, where Francisco Palafox had been busy. Four or five thousand peasants with one newly-levied regiment of Aragonese volunteers tried to resist this small column, but were beaten on the twenty-sixth in front of the town of Alcañiz, which fell into Wathier’s hands, and with it 20,000 sheep and 1,500 sacks of flour, which had been collected for the revictualling of Saragossa, in case the investment should be broken. They were a welcome windfall to the besieging army, where food was none too plentiful, since the plain country where it lay encamped had now been eaten bare, and convoys of food from Tudela and Pampeluna were rare and inadequate.

On January 24 the French had succeeded in pushing three approaches across the Huerba, and were firmly established under its northern bank. Two days later they made lodgements in ruins, cellars, and low walls where buildings had been pulled down, in the narrow space between the town wall and the river bank, below the Palafox battery. The cannon of the defenders could only act intermittently: every night the parapets were repaired, but every morning after a few hours of artillery duel the Spanish guns were silenced by the dreadful converging fire poured in upon them. Meanwhile Palafox was heaping barricade upon barricade in the quarters behind the threatened points, and fortifying the houses and convents which connected them.

The final crisis arrived on the twenty-seventh. There were now three practicable breaches,—two were on the side of the Palafox battery, one in the convent of Santa Engracia. To storm the first and second Lannes told off the light companies of the first brigade of Grandjean’s division; to the third was allotted the 1st regiment of the Vistula from Musnier’s division. Heavy supports lay behind them, in the third parallel, with orders to rush in if the storming parties should prove successful.

The assault was delivered with great dash and swiftness at noon on the twenty-seventh. On two points it was successful. At the most northern breach the assailants reached the summit of the wall, but could not get down into the city, on account of the storm of musketry from barricades and houses that swept the gap into which they had advanced. They merely made a lodgement in the breach itself, and could penetrate no further. But in the central breach, close beneath the Palafox battery, the voltigeurs not only passed the walls, but seized the ‘Oil Mill’ which abutted on them, and a triangular block of houses projecting into the town. At the Santa Engracia breach they were even more fortunate: the Poles carried the convent with their first rush: its outer wall had been battered down for a breadth of thirty yard and entering there the stormers drove out the Spaniards from the interior buildings of the place, and got into the large square which lies behind it, where they seized the Capuchin nunnery. Thus a considerable wedge was driven through the enceinte, and the Spaniards had to evacuate the walls for some little distance on each side of Santa Engracia. From the stretch to the west of that convent they were driven out by an unpremeditated assault of Musnier’s supports, who ran out from the trenches on the left of the Huerba, and escaladed the dilapidated wall in front of them, when they saw the garrison drawing back on account of the flanking fire from Santa Engracia. They got possession of the whole outer enceinte as far as the Trinitarian convent by the Carmen gate.

These successes were bought at the moderate loss of 350 men, of whom two-thirds fell in the fighting on the Santa Engracia front; the Spaniards lost somewhat more, including a few prisoners. In any ordinary siege the day would have settled the fate of the place, for the besiegers had broken through the enceinte in two places, and though the space seized inside the Palafox battery was not large, yet on each side of Santa Engracia the assailants had penetrated so far that a quarter of a mile of the walls was in their possession. But Saragossa was not as other places, and the garrison were perfectly prepared with a new front of defence, composed of batteries and crenellated houses in rear of the lost positions. Two wedges, one large and one small, had been driven into the town, but they had to be broadened and driven further in if they were to have any effect.

On the twenty-eighth, therefore, a new stage of the siege began, and the street-fighting, which was to last for twenty-four days more, had its commencement. Lannes had heard, from those who had served under Verdier in the first siege, of the deplorable slaughter and repeated repulses that had followed the attempt to carry by main force the internal defences of the city. To hurl solid columns of stormers at the barricades and the crenellated houses was not his intention. He had made up his mind to advance by sap and mine, as if he were dealing with regular fortifications. His plan was to use each block of houses that he gained as a base for the attack upon the next, and never to send in the infantry with the bayonet till he had breached by artillery, or by mines, the building against which the assault was directed. This form of attack was bound to be slow, but it had the great merit of costing comparatively little in the way of casualties. The fact was that the Marshal had not the numbers which would justify him in wasting lives by assaults which might or might not be successful, but which were certain to prove very bloody. The whole Third Corps, as we have already seen, did not now furnish much more than 13,000 bayonets, while Gazan’s men were all occupied in watching the suburb, and Suchet’s lay far out, as a covering corps set to watch Perena and Lazan.

There was no one single dominating position in the city whose occupation was likely to constrain the besieged to surrender. The whole town is built on a level, and its fifty-three solidly-built churches and convents formed so many forts, each of which was defensible in itself and could not be reduced save by a direct attack. All that could be done was to endeavour to capture them one by one, in the hope that at last the Saragossans would grow tired of their hopeless resistance, and consent to surrender, when they realized that things had gone so far that they could only protract, but could not finally beat off, the slow advance of the besieging army.

The work of the French, therefore, consisted in spreading out from their two separate lodgements on the eastern and southern sides of the city, with the simple object of gaining ground each day and of driving the Spaniards back towards the centre of the place. On the right attack the most important objective of the besiegers was the block of monastic buildings to the north of the Palafox battery, the twin convents of San Augustin and Santa Monica, which lay along the northern side of the small wedge that they had driven into the north-eastern corner of the town. As these buildings lay on ground slightly higher than that which the French had occupied, it was difficult to attack them by means of mines. But an intense converging fire was brought to bear upon them, both from batteries outside the walls, playing across the Huerba, and by guns brought inside the captured angle of the enceinte. The outer walls of Santa Monica were soon a mass of ruins: nevertheless the first attack on it [January 29] was beaten off, and it was only on the next day, after twenty-four hours more of furious bombardment, that Grandjean’s men succeeded in storming, first the convent and then its church, after a furious hand-to-hand fight with the defenders.