Francis having, by this transaction, deprived the Emperor of his two most powerful allies, and at the same time having secured a passage for his own troops through their territories, formed a scheme of attacking the kingdom of Naples, hoping either to overrun that country, which was left altogether without defence, or that at least such an unexpected invasion would oblige the viceroy to recall part of the imperial army out of the Milanese. For this purpose he ordered six thousand men to march under the command of John Stuart, Duke of Albany. But Pescara, foreseeing that the effect of this diversion would depend entirely upon the operations of the armies in the Milanese, persuaded Lannoy to disregard Albany's motions, and to bend his whole force against the King himself; so that Francis not only weakened his army very unseasonably by this great detachment, but incurred the reproach of engaging too rashly in chimerical and extravagant projects. By this time the garrison of Pavia was reduced to extremity; their ammunition and provisions began to fail; the Germans, of whom it was chiefly composed, having received no pay for seven months, threatened to deliver the town into the enemy's hands, and could hardly be restrained from mutiny by all Leyva's address and authority. The imperial generals, who were no strangers to his situation, saw the necessity of marching without loss of time to his relief. This they had now in their power. Twelve thousand Germans, whom the zeal and activity of Bourbon taught to move with unusual rapidity, had entered Lombardy under his command, and rendered the imperial army nearly equal to that of the French, greatly diminished by the absence of the body under Albany, as well as by the fatigues of the siege and the rigor of the season. But the more their troops increased in number, the more sensibly did the imperialists feel the distress arising from want of money. Far from having funds for paying a powerful army, they had scarcely what was sufficient for defraying the charges of conducting their artillery and of carrying their ammunition and provisions. The abilities of the generals, however, supplied every defect. By their own example, as well as by magnificent promises in name of the Emperor, they prevailed on the troops of all the different nations which composed their army to take the field without pay; they engaged to lead them directly toward the enemy, and flattered them with the certain prospect of victory, which would at once enrich them with such royal spoils as would be an ample reward for all their services. The soldiers, sensible that, by quitting the army, they would forfeit the great arrears due to them, and eager to get possession of the promised treasures, demanded a battle with all the impatience of adventurers who fight only for plunder.