The trenches had not been opened before Pavia till about the beginning of November. The winter overtook us, and the siege was yet in progress; with some apparent advantage indeed to our side of the question, but by no means promising an instant conclusion. The season set in with unusual severity; and both officer and soldier were glad, as much as possible, to fence out its rigour by the indulgences of the genial board. My finances, as I have said, were at the commencement of the expedition in excellent order: I had brought with me a considerable sum; and it was not spared upon the present occasion.

There were however other things to be attended to, beside the demands of conviviality. The king became impatient of the delays of the siege. The garrison and the inhabitants were reduced to great extremities; but the governor discovered no symptoms of a purpose to surrender. In the mean time intelligence was brought, that Bourbon was making the most extraordinary exertions in Germany, and promised to lead to the enemy a reinforcement of twelve thousand men from that country; while the imperial generals, by mortgaging their revenues, and pawning their jewels, and still more by their eloquence and influence with those under their command, were able to keep together the remains of a disheartened and defeated army in expectation of his arrival. There was some danger therefore, if the siege were not speedily terminated, that the king might ultimately be obliged to raise it with ignominy, or to fight the enemy under every disadvantage. Francis however was not to be deterred from his undertaking. He swore a solemn oath, that Pavia should be his, or he would perish in the attempt.

Thus circumstanced, he conceived a very extraordinary project. Pavia is defended on one side by the Tesino, the scene of the first of the four famous battles by which Hannibal signalised his invasion of Italy. The king believed that if this river could by the labour of his army be diverted from its course, the town must instantly fall into his hands. He was encouraged to the undertaking, by recollecting a stratagem of a similar nature by which Cyrus formerly made himself master of the city of Babylon. It was a thought highly flattering to the grandeur of his soul, to imagine that posterity would in this instance institute a parallel between him and Cyrus the Great.

The plan for diverting the course of the Tesino produced a new and extraordinary scene. It was, as may well be believed, a work of uncommon labour. A new channel was to be scooped out and deepened; and, while the stream was turned into this channel, piles were to be sunk, and an immense mound of earth created, as an effectual impediment to the waters resuming their former course. This was a heavy burthen to the soldier, in addition to the disadvantage of being encamped during the course of a winter remarkably severe for the climate in which we fought. By any other army the task would have been performed with cloudiness and discontent, if not complained of with repining and murmurs. But here the gaiety of the French character displayed itself. The nobility of France, who attended their sovereign in great numbers, accompanied the infantry in their labour. We laid aside the indulgence of the marquée, of tapestry and carpets; we threw off our upper garments; and each seized a spade, a barrow of earth, or a mattock. We put our hands to the engines, and refused no effort under pretence that it was sordid or severe. While the trees were leafless, and nature appeared bound up in frost, sweat ran down our faces and bedewed our limbs. The army were encouraged by our example. An employment which, under other circumstances, would have been regarded as rigid, was thus made a source of new hilarity and amusement. It was a memorable sight to behold the venerable and grey-headed leaders of the French army endeavouring to exert the strength and activity of their early years. To me, who had but lately arrived at the stature of manhood, and who was accustomed to all the exercises which give strength and vigour to the frame, this new employment was in no degree burdensome. I felt in it the satisfaction that a swift man experiences when he enters the lists of the race; I congratulated myself upon the nature of my education; if it be a sin to covet honour, that guilt was mine; and, so great was my appetite for it, that I was inexpressibly rejoiced to observe the various ways in which it might be gratified.

Strange as it may seem, this scene of a winter-camp, in the midst of blood and sweat, surrounded with dangers, and called on for unparalleled exertions, appears to me, through the vista of years that is now interposed between, to have been one of the happiest of my life. The gay labours and surprises of the day were succeeded by a convivial evening, in which we did not the less open our hearts, though frequently liable to be interrupted in our midnight revels by the inexhaustible activity and stratagems of the enemy. In this various and ever-shifting scene, I forgot the disasters that occurred, and the blood that flowed around me. All sense of a large and impartial morality was, for the time at least, deadened in my breast. I was ever upon the alert. The diversity of events neither suffered my spirits to flag, nor reflection to awake. It is only upon such occasions, or occasions like these, that a man is able fully to feel what life is, and to revel in its exuberance. Above all, I was delighted with the society and friendship of my brother-officers. They honoured me; they loved me. I seemed to feel what sympathy was; and to have conscious pleasure in making one in a race of beings like myself. Such were my sensations.

It must not, however, be imagined, that all about me felt in these respects as I did. I was deeply indebted in this particular to my youth and my fortune. The old endeavoured to brace themselves in vain; they sunk under the continual pressure. The poor soldier from the ranks laboured incessantly, and I laboured as much as he; but he had little opportunity to recruit his vigour and renovate his strength. There was yet another class of persons in the camp, whose gaiety was much less interrupted than mine. These were, the king, and the generals who commanded under him. They could not be entirely devoid of thought and consideration. They suffered much anxiety from the length of the siege; and felt that every period of delay increased the doubtfulness of the event.

Antonio de Leyva, governor of the city, necessarily felt himself alarmed at the extraordinary project in which we were engaged, and made every exertion to prevent it. One evening the king sent for me to his tent, and told me in confidence that the enemy intended that very night to make three several attacks upon our mound, one on each side of the stream, and one by means of boats in the centre. Two of these, he said, were merely intended as feints; the west bank of the Tesino was the point against which their principal exertions would be directed. On that side he was resolved to command in person; the boats with which he proposed to resist their flota he confided to one of the most famous and valuable officers of his army; the detachment on the east bank he purposed to intrust to my uncle and myself. He observed, that the detachment he could spare for that purpose, after having formed the other two bodies, and reserved a sufficient number for the defence of the camp and the works, would be small; and he warned me to the exertion of a particular vigilance. It would be doubly unfortunate, if a body, the attack upon which was to be merely a feigned one, should nevertheless be routed. “Go,” added he, “fulfil my expectations; deport yourself answerably to the merit of your first achievement; and depend upon it that you will prove hereafter one of the most eminent supporters of the martial glory of France.”

The Marquis de Villeroy divided our little force into two bodies: with the larger he lay in wait for the enemy near the scene of the expected attack: the smaller he confided to my direction, and placed so that we might be able to fall upon the rear of the garrison-troops as soon as they should be fully engaged with our comrades. In the situation assigned me I took advantage of the skirts of a wood, which enabled me to approach very near to the expected route of our assailants, without being perceived by them. The night was extremely dark, yet the vicinity of my position was such, that I could count the numbers of the adversary as they passed along before my hiding-place. I was alarmed to find that they amounted to at least the triple of what we had been taught to expect. They were no sooner past, than I despatched to the king a young knight, my particular friend, who happened to be with me, to urge the necessity of a reinforcement. At the same time I sent a messenger to my uncle, by a circuitous route, to inform him of what I had observed, and the step I had taken, and to entreat him to defer the attack as long as consistently with propriety it should be possible. The enemy, however, had no sooner arrived at the place of his destination, than the troops of the marquis, no longer capable of restraint, rushed to engage. The Spaniards were at first surprised, but a short time led them to suspect the weakness of their assailants; nor was the assistance I brought to my uncle sufficient to turn the fortune of the fight. We lost many of our men; the rest apparently gave ground; and it was a vain attempt, amidst the darkness of the night, to endeavour to restore order and rally them to the assault. We were already almost completely overpowered, when the succours we expected reached us. They were, however, unable to distinguish friend from enemy. A storm of mingled rain and snow had come on, which benumbed our limbs, drove fiercely in our faces, and rendered every object alike viewless. The carnage which in this situation took place was terrible. Our blows were struck at random. A Frenchman was not less dreadful than a Spaniard. When the battle ceased, scarcely one of the enemy was left alive; but we observed with astonishment and horror the number of the besiegers who had probably, in the midst of the confusion, been cut to pieces by their own countrymen.