At daybreak, the following morning, Bonaparte then being at the head of the French forces, and having introduced two pieces of cannon into the redoubt during the night, the action was recommenced with great vigor and with varying success. The contest had continued for sometime, when Bonaparte, with Berthier and Massena appearing suddenly with the centre and left wing of the army upon the rear and flank of the enemy, at once commenced a furious attack, filled them with terror and confusion, and decided the fate of the day. D'Argenteau, who commanded the rear, had fought gallantly, but seeing that to continue the battle would only end in total destruction, he fled, leaving his colors and cannon, a thousand killed and two thousand prisoners.
Thus was the centre of the great Austrian army completely routed before either its commander-in-chief at the left, or General Colli at the right, knew that a battle had begun. It was from this battle, the first of Napoleon's victories, that the French Emperor told the Emperor of Austria, some years later, that he dated his nobility. "Ancestors?" said Napoleon, "I, sir, am an ancestor myself; my title of nobility dates from Montenotte!"
This victory enabled the French, under La Harpe, to advance to Cairo, and placed them on that side of the Alps which slopes toward Lombardy.
Beaulieu now fell back on Dego, where he could open his communication with Colli, who had retreated to Millessimo, a small town about nine miles from Dego. Here the two commanders hoped to unite their forces. They were soon strongly posted, and dispatching couriers to Milan for reinforcements, intended to await their arrival before risking another battle. It was their object to keep fast in these positions until succor could come from Lombardy; but Napoleon had no intention of giving them such a respite; his tactics were not those of other generals.
The morning after the victory of Montenotte Bonaparte dispatched Augereau to attack Millessimo; Massena to fall on Dego, and La Harpe to turn the flank of Beaulieu.
Massena carried the heights of Biestro at the point of the bayonet, while La Harpe dislodged the Austrian general from his position, which separated him hopelessly from the Sardinian commander and put him to precipitate flight. By these movements Bonaparte was in such a position, that, though they had not traversed, his army had at all events scaled the Alps.
Meanwhile Augereau had seized the outposts of Millessimo and cut off Provera, with 2,000 Austrians who occupied an eminence upon the mountain of Cossaria, from the main body of Colli's army. Provera took refuge in a ruined castle which he defended with great bravery, hoping to receive assistance from Colli.
The next morning Napoleon, who had arrived in the night, forced Colli to battle and compelled him to retreat towards Ceva. Provera imitated the gallant example of Colonel Rampon in his defense, but not with the same success. He was compelled to surrender his sword to Bonaparte at discretion, after a loss of 10,000 in killed and prisoners, twenty-two cannon and fifteen standards. The French found on the summit of the Alps every species of ammunition and other necessities which the celerity of their march had prevented them from carrying.
Dego, situated at the summit of the Alps, secured the entrance of the French into Italy, cut off the communications between the Austrian and Sardinian armies, and placed the conqueror in a situation to crush them in succession one after the other. Beaulieu, fully sensible of the danger of his situation, collected the best troops in his army, and at break of day on the 15th of April, retook Dego at the head of 7,000 men.