M. d'Orleans joined M. de Vendome on the 17th of July, upon the Mincio. The pretended hero had just made some irreparable faults. He had allowed Prince Eugene to pass the Po, nearly in front of him, and nobody knew what had become of twelve of our battalions posted near the place where this passage had been made. Prince Eugene had taken all the boats that we had upon the river. We could not cross it, therefore, and follow the enemy without making a bridge. Vendome feared lest his faults should be perceived. He wished that his successor should remain charged with them. M. d'Orleans, indeed, soon saw all the faults that M. de Vendome had committed, and tried hard to induce the latter to aid him to repair them. But M. de Vendome would not listen to his representations, and started away almost immediately to take the command of the army in Flanders, leaving M. d'Orleans to get out of the difficulty as he might.
M. d'Orleans, abandoned to himself (except when interfered with by Marechal de Marsin, under whose tutelage he was), could do nothing. He found as much opposition to his plans from Marsin as he had found from M. de Vendome. Marsin wished to keep in the good graces of La Feuillade, son-in-law of the all-powerful minister, and would not adopt the views of M. d'Orleans. This latter had proposed to dispute the passage of the Tanaro, a confluent of the Po, with the enemy, or compel them to accept battle. An intercepted letter, in cypher, from Prince Eugene to the Emperor, which fell into our hands, proved, subsequently, that this course would have been the right one to adopt; but the proof came too late; the decyphering table having been forgotten at Versailles! M. d'Orleans had in the mean time been forced to lead his army to Turin, to assist the besiegers, instead of waiting to stop the passage of the troops that were destined for the aid of the besieged. He arrived at Turin on the 28th of August, in the evening. La Feuillade, now under two masters, grew, it might be imagined, more docile. But no! He allied himself with Marsin (without whom M. d'Orleans could do nothing), and so gained him over that they acted completely in accord. When M. d'Orleans was convinced, soon after his arrival, that the enemy was approaching to succour Turin, he suggested that they should be opposed as they attempted the passage of the Dora.
But his advice was not listened to. He was displeased with everything. He found that all the orders he had given had been disregarded. He found the siege works bad, imperfect, very wet, and very ill-guarded. He tried to remedy all these defects, but he was opposed at every step. A council of war was held. M. d'Orleans stated his views, but all the officers present, with one honourable exception, servilely chimed in with the views of Marsin and La Feuillade, and things remained as they were. M. d'Orleans, thereupon, protested that he washed his hands of all the misfortunes that might happen in consequence of his advice being neglected. He declared that as he was no longer master over anything, it was not just that he should bear any part of the blame which would entail to those in command. He asked, therefore, for his post-chaise, and wished immediately to quit the army. La Feuillade and Marsin, however, begged him to remain, and upon second thoughts he thought it better to do so. The simple reason of all this opposition was, that La Feuillade, being very young and very vain, wished to have all the honours of the siege. He was afraid that if the counsel of M. d'Orleans prevailed, some of that honour would be taken from him. This was the real reason, and to this France owes the disastrous failure of the siege of Turin.
After the council of war, M. d'Orleans ceased to take any share in the command, walked about or stopped at home, like a man who had nothing to do with what was passing around him. On the night of the 6th to the 7th of September, he rose from his bed alarmed by information sent to him in a letter, that Prince Eugene was about to attack the castle of Pianezza, in order to cross the Dora, and so proceed to attack the besiegers. He hastened at once to Marsin, showed him the letter, and recommended that troops should at once be sent to dispute the passage of a brook that the enemies had yet to cross, even supposing them to be masters of Pianezza. Even as he was speaking, confirmation of the intelligence he had received was brought by one of our officers. But it was resolved, in the Eternal decrees, that France should be struck to the heart that day.
Marsin would listen to none of the arguments of M. d'Orleans. He maintained that it would be unsafe to leave the lines; that the news was false; that Prince Eugene could not possibly arrive so promptly; he would give no orders; and he counselled M. d'Orleans to go back to bed. The Prince, more piqued and more disgusted than ever, retired to his quarters fully resolved to abandon everything to the blind and deaf, who would neither see nor hear.
Soon after entering his chamber the news spread from all parts of the arrival of Prince Eugene. He did not stir. Some general officers came, and forced him to mount his horse. He went forth negligently at a walking pace. What had taken place during the previous days had made so much noise that even the common soldiers were ashamed of it. They liked him, and murmured because he would no longer command them. One of them called him by his name, and asked him if he refused them his sword. This question did more than all that the general officers had been able to do. M. d'Orleans replied to the soldier, that he would not refuse to serve them, and at once resolved to lend all his aid to Marsin and La Feuillade.
But it was no longer possible to leave the lines. The enemy was in sight, and advanced so diligently, that there was no time to make arrangements. Marsin, more dead than alive, was incapable of giving any order or any advice. But La Feuillade still persevered in his obstinacy. He disputed the orders of the Duc d'Orleans, and prevented their execution, possessed by I know not what demon.
The attack was commenced about ten o'clock in the morning, was pushed with incredible vigour, and sustained, at first, in the same manner. Prince Eugene poured his troops into those places which the smallness of our forces had compelled us to leave open. Marsin, towards the middle of the battle, received a wound which incapacitated him from further service, end was taken prisoner immediately after. Le Feuillade ran about like a madman, tearing his hair, and incapable of giving any order. The Duc d'Orleans preserved his coolness, and did wonders to save the day. Finding our men beginning to waver, he called the officers by their names, aroused the soldiers by his voice, and himself led the squadrons and battalions to the charge. Vanquished at last by pain, and weakened by the blood he had lost, he was constrained to retire a little, to have his wounds dressed. He scarcely gave himself time for this, however, but returned at once where the fire was hottest. Three times the enemy had been repulsed and their guns spiked by one of our officers, Le Guerchois, with his brigade of the old marine, when, enfeebled by the losses he had sustained, he called upon a neighbouring brigade to advance with him to oppose a number of fresh battalions the enemy had sent against him. This brigade and its brigadier refused bluntly to aid him. It was positively known afterwards, that had Le Guerchois sustained this fourth charge, Prince Eugene would have retreated.
This was the last moment of the little order that there had been at this battle. All that followed was only trouble, confusion, disorder, flight, discomfiture. The most terrible thing is, that the general officers, with but few exceptions, more intent upon their equipage and upon what they had saved by pillage, added to the confusion instead of diminishing it, and were worse than useless.
M. d'Orleans, convinced at last that it was impossible to re-establish the day, thought only how to retire as advantageously as possible. He withdrew his light artillery, his ammunition, everything that was at the siege, even at the most advanced of its works, and attended to everything with a presence of mind that allowed nothing to escape him. Then, gathering round him all the officers he could collect, he explained to them that nothing but retreat was open to them, and that the road to Italy was that which they ought to pursue. By this means they would leave the victorious army of the enemy in a country entirely ruined and desolate, and hinder it from returning into Italy, where the army of the King, on the contrary, would have abundance, and where it would cut off all succour from the others.