Many events of high historical importance had occurred in this interval of time. The Cardinal Richelieu, after having taken Rochelle, and made a treaty of peace with England, had proposed, effected by his powerful influence in the councils of the French king, that efficacious aid should be sent to the Duke of Nevers; he had also persuaded the king to lead the expedition in person. Whilst the preparations were in progress, the Count of Nassau, imperial commissary, suggested to the new duke in Mantua the expediency of replacing his states in the hands of Ferdinand; intimating that, in case of refusal, an army would be immediately sent by the emperor to occupy them. The duke, who in the most desperate circumstances had rejected so hard a condition, encouraged now by the promised succours from France, was determined still longer to defend himself. The commissary departed, declaring that force would soon decide the matter.

In the month of March, the Cardinal Richelieu with the king, at the head of an army, demanded a free passage from the Duke of Savoy; he entered into treaties for the purpose, but nothing was concluded. After a rencounter, in which the French obtained the advantage, a new treaty was entered into, in which the duke stipulated that Don Gonzalo de Cordova should raise the siege of Casale, engaging, in case of his refusal, to unite with the French, and invade the duchy of Milan. Don Gonzalo raised the siege of Casale, and a body of French troops entered it, to reinforce the garrison. The Cardinal Richelieu decided to return to France, on business which he regarded as more urgent; but Girolamo Soranzo, envoy from Venice, offered the most powerful reasons to divert him from this resolution. To these the king and the cardinal paid no attention; they returned with the greatest part of the army, leaving only 6000 men at Suza to occupy the passes and maintain the treaty.

Whilst this army departed on one side, that of Ferdinand, commanded by the Count of Collato, advanced on the other. It had invaded the country of the Grisons, and the Valtelline, and was preparing to come down on the Milanese. Besides the usual terrors which such an expectation was calculated to excite, the report was spread, that the plague lurked in the imperial army. Alessandro Tadino, one of the conservators of the public health, was charged by the tribunal to state to the governor the frightful danger which threatened the country, if this army should obtain the pass which opened on Mantua. It appears from all the actions of Gonzalo, that he was possessed by a desire to occupy a great place in history; but, as often happens, history has failed to register one of his most remarkable acts, the answer he returned to this Doctor Tadino; which was, “that he knew not what could be done; that reasons of interest and honour, which had induced the march of the army, were of greater weight than the danger represented; that he would, however, endeavour to act for the best, and that they must trust to Providence.”

In order, then, to act for the best, their two physicians proposed to the tribunal to forbid, under the most severe penalty, the purchase of any articles of clothing from the soldiers who were about to pass. As to Don Gonzalo, his reply to Doctor Tadino was one of his last acts at Milan, as the ill success of the war, which had been instigated and directed by him, caused him to be displaced in the course of the summer. He was succeeded by Marquis Ambrosio Spinola, who had already acquired the military celebrity in the wars of Flanders which still endures.

Meanwhile the German troops had received definite orders to march upon Mantua, and in the month of September they entered the duchy of Milan.

At this epoch armies were composed, for the greater part, of adventurers, enlisted by condottieri, who held their commission from some prince, and who sometimes pursued the occupation on their own account, so as to be able to sell themselves and followers together. Men were drawn to this vocation much less by the pay which was assigned to them, than by the hope of pillage, and the charms of licence. There was no fixed or general discipline; and as their pay was very uncertain, the spoils of the countries which they over-ran were tacitly accorded to them by their commanders.

It was a saying of the celebrated Wallenstein’s, that it was easier to maintain an army of 100,000 men than one of 12,000. And this army of which we are now speaking was part of that which in the thirty years’ war had desolated all Germany; it was commanded by one of Wallenstein’s lieutenants, and consisted of 28,000 infantry, and 7000 horse. In descending from the Valtelline towards Milan, they had to coast along the Adda, to the place where it empties into the Po; eight days’ march in the duchy of Milan.

A great proportion of the inhabitants retired to the mountains, carrying with them their most precious possessions; some remained to watch the sick, or to preserve their dwellings from the flames, or to watch the valuable property which they had buried or concealed; and others remained because they had nothing to lose. When the first detachment arrived at the place where they were to halt, the soldiers scattered themselves through the country; and subjected it at once to pillage; all that could be eaten or carried off disappeared; fields were destroyed, and cottages burnt to the ground; every hiding-place, every method to which people had resorted, in their despair, for the defence of their property, became useless, nay, often resulted in the peculiar injury of the proprietor. Strict search was made throughout every house by the soldiers; they easily detected in the gardens the earth which had been newly dug; they penetrated the caverns in search of the opulent inhabitants, who had taken refuge there, and dragging them to their houses, forced them to declare where they had concealed their treasures.

At last they departed; their drums and trumpets were heard receding in the distance, and a temporary calm succeeded to these hours of tumult and affright; but, alas! the sound of drums was again heard, announcing the arrival of another detachment, the soldiers of which, furious at not finding booty, destroyed what the first work of desolation had spared; burned the furniture and the houses, and manifested the most cruel and savage disposition towards the inhabitants. This continued for a period of twenty days, the army containing that number of divisions.

Colico was the first territory of the duchy that these demons invaded; they then threw themselves on Bellano, from which they entered and spread themselves in the Valsassina, whence they marched into the territory of Lecco.