As danger approached, the Empress and her son, the King of Rome, had gone to Blois, where they were shortly joined by King Joseph, who abandoned the command which the Emperor had given him. The troops of the line left by the Fontainebleau gate, a route by which the Emperor was expected to arrive.

It is not possible to describe the agitation which seized the city whose inhabitants, divided by so many different interests, had been surprised by an invasion which few of them had foreseen… As for me, who had expected it, and who had seen at close quarters the horrors of war, I was most anxiously thinking of a way to ensure the safety of my wife and our young child, when the elderly Marshal Serurier offered a shelter for all my family at Les Invalides, of which he was the governor. I was comforted by the thought that as everywhere the homes for old soldiers had always been respected by the French, the enemy would act in the same way towards ours. I therefore took my family to the Invalides and left Paris, before the entry of the allies, to report to General Preval at Versailles. I was given command of a small column made up of available cavalrymen from my own regiment and from the 9th and 12th Chasseurs.

Even if the allies had not marched on Paris, this column was due to be assembled at Rambouillet, and it is to there that I went. I found there my horses and my equipment, and I took command of the squadrons which had been allotted to me. The road was full of the carriages of those who were flying from the capital. I was not surprised by that; but I was unable to understand where the great number of troops of all arms came from, which one saw arriving from all directions in detachments, which if they had been combined would have formed a corps of sufficient size to hold up the enemy at Montmartre, and allow time for the army which was hurrying from Champagne and Brie to arrive and save Paris. The Emperor, misled by his Minister for War, had given no instructions regarding the matter, and was probably unaware that he still had so great a capacity for defence at his disposal, a description of which follows, taken from Ministry of War documents.

There were at Vincennes, the military school of the Champ de Mars, and the central artillery depot, some four hundred cannons with ammunition and 50,000 muskets. As for men, there were the troops brought by Marshals Marmont and Mortier, which together with troops gathered from other sources including 20,000 workmen, nearly all of them old soldiers, who had volunteered to help defend the city, amounted to some 80,000.

It would have been possible for Joseph and Clarke to assemble this force in a few hours and to defend the city until the arrival of the Emperor and the army which was following him.

Joseph and Clarke had forty-eight hours warning of the enemy approach, but did nothing, and as a final act of incompetence, at the moment when the enemy troops were attacking Romainville, they sent 4000 men of the Imperial Guard to Blois, to reinforce the escort of the Empress, which was already quite big enough.

When the Emperor learned that Paris had capitulated and that the two small corps of Marmont and Mortier had left, and were retiring towards him, he sent them orders to take up positions at Essonnes, seven leagues from Paris and mid-way between that city and Fontainebleau. He went himself to this last town, where were arriving the heads of the columns coming from Saint-Dizier, an indication that he intended to march on Paris as soon as his army was gathered together.

The enemy generals have later stated that if they had been attacked by the Emperor, they would not have risked a battle, with the Seine behind them and also the great city of Paris, with its million inhabitants, which might rise in revolt at any moment during the fighting and barricade the streets and the bridges, thus cutting off their line of retreat. So they had decided to draw back and camp on the heights of Belleville, Charonne, Montmartre, and the slopes of Chaumont, which dominate the right bank of the Seine and the route to Germany, when new events in Paris kept them in the city.

M. de Tallyrand, a former bishop now married, who had always appeared to be devoted to the Emperor, by whom he had been loaded with riches and made prince of Benevento, Grand Chamberlain, etc., etc., felt his pride injured when he was no longer Napoleon's confidant, and the minister directing his policy. So, after the disasters of the Russian campaign, he had put himself at the head of an underground conspiracy, which included all the malcontents from every party, but mainly the Faubourg Saint-Germain, that is to say the high aristocracy, who, after appearing at first submissive and even serving Napoleon in the time of his prosperity, had become his enemy, and without openly compromising themselves, attacked, by all means, the head of government.

These people, guided by Tallyrand, the most cunning and scheming of them all, had been waiting for an occasion to overthrow Napoleon. They realised that they would never have a more favourable opportunity than that offered by the occupation of the country by a million and a half enemies, and the presence in Paris of all the crowned heads of Europe, most of whom had been grossly humiliated by Napoleon at one time or another. Napoleon, however, though greatly weakened, was not yet entirely beaten, for, apart from the army which he had with him, and with which he had performed prodigies, there was Suchet's army, between the Pyrenees and the Haute-Garonne, there were troops commanded by Marshal Soult, there were two fine divisions at Lyon, and finally, the army in Italy was still formidable, so that in spite of the occupation of Bordeaux by the English, Napoleon might still assemble considerable forces and prolong the war indefinitely, by raising a population, exasperated by the exactions of the enemy.