The door of the council chamber opened. The king and the cardinal came out together and descended the stairs in company, Richelieu attending Louis until he had reached the foot of the stairway, and gone into an adjoining room. The cardinal turned to ascend again, without a moment's suspicion that the two gentlemen at the stair-foot clutched hidden daggers in their hands, ready, at a signal from the duke, who stood near by, to plunge them in his breast.

The signal did not come. At the last moment the courage of Gaston of Orleans failed him. Whether from something in Richelieu's earnest and dignified aspect, or some sudden fear of serious consequences to himself, the chief conspirator turned hastily away, without speaking the fatal word agreed upon. What the duke feared to do, the count dared not do. The two chosen assassins stood expectant, greeting the cardinal as he passed, and waiting in nervous impatience for the promised signal. It failed to come. Their daggers remained undrawn. Richelieu calmly ascended the stairs to his rooms, without a dream of the deadly peril he had run.

The conspiracy against the cardinal which has attained the greatest historical notoriety is that associated with the name of Cinq-Mars, the famous favorite of Louis XIII. Brilliant and witty, a true type of the courtiers of the time, this handsome youth so amused and interested the king that, when he was only nineteen years of age, Louis made him master of the wardrobe and grand equerry of France. M. Le Grand he was called, and grand enough he seemed, in his independent and capricious dealings with the king. Louis went so far as to complain to Richelieu of the humors of his youthful favorite.

"I am very sorry," he wrote, under date of January 4, 1641, "to trouble you about the ill-tempers of M. Le Grand. I upbraided him with his heedlessness; he answered that for that matter he could not change, and that he should do no better than he had done. I said that, considering his obligations to me, he ought not to address me in that manner. He answered in his usual way; that he didn't want my kindness, that he could do very well without it, and that he would be quite as well content to be Cinq-Mars as M. Le Grand, but as for changing his ways and his life, he couldn't do it. And so, he continually nagging at me and I at him, we came as far as the court-yard, where I said to him that, being in the temper he was in, he would do me the pleasure of not coming to see me. I have not seen him since."

This letter yields a curious revelation of the secret history of a royal court. There have been few kings with whom such impudent independence would have served. Louis XIII. was one of them. Cinq-Mars seems to have known his man. The quarrel was not of long continuance. Richelieu, who had first placed the youth near the king, easily reconciled them, a service which the foolish boy soon repaid by lending an ear to the enemies of the cardinal. For this Richelieu was in a way responsible. He had begun to find the constant attendance of the favorite upon the king troublesome to himself, and gave him plainly to understand so. "One day he sent word to him not to be for the future so continually at his heels, and treated him even to his face with as much tartness and imperiousnesss as if he had been the lowest of his valets." Such treatment was not likely to be well received by one of the independent disposition of Cinq-Mars. He joined in a plot against the cardinal.

The king was ill; the cardinal more so. Gaston, Duke of Orleans, was again in Paris, and full of his old intriguing spirit. The Duke of Bouillon was there also, having been sent for by the king to take command of the army of Italy. He, too, was drawn into the plot which was being woven against Richelieu. The queen, Anne of Austria, was another of the conspirators. The plot thus organized was the deepest and most far-reaching which had yet been laid against the all-powerful minister.

Bouillon was prince-sovereign of the town of Sedan. This place was to serve the conspirators as an asylum in case of reverse. But a town was not enough; an army was needed; whence should it come? Spain might furnish it.

The affair was growing to the dimensions of a conspiracy against the crown as well as the minister. Viscount de Fontrailles, a man who detested the cardinal, and would not have hesitated to murder him as a simpler way of disposing of the difficulty, was named by Cinq-Mars as a proper person to deal with the Spaniards. He set out for Madrid, and soon succeeded in negotiating a secret treaty, in the name of the Duke of Orleans, by whose terms Spain was to furnish the conspirators with twelve thousand foot, five thousand horse, and the necessary funds for the enterprise. The town of Sedan, and the names of Cinq-Mars and Bouillon, were not mentioned in this treaty, but were given in a separate document.

While this dangerous work was going on the cardinal was dangerously ill, a prey to violent fever, and with an abscess on his arm which prevented him from writing. The king was with the army, which was besieging Perpignan. With him was Cinq-Mars, who was doing his best to insinuate suspicions of the minister into the mind of the king. All seemed promising for the conspirators, the illness of the cardinal, in their opinion, being likely to carry him off in no long period, and meanwhile preventing him from discovering the plot and setting himself right with the king.

Evidently these hopeful people did not know the resources of Cardinal Richelieu. In all his severe illness his eyes had not been blind, his intellect not at rest. Keen as they thought themselves, they had a man with double their resources to deal with. Though Richelieu was by no means surrounded by the intricate web of spies and intrigues with which fiction and the drama have credited him, he was not without his secret agents, and his means of tracing the most hidden movements of his enemies. Cinq-Mars lacked the caution necessary for a conspirator. His purposes became evident to the king, who had no thought of exchanging his great minister for a frivolous boy who was only fitted to amuse his hours of relaxation. The outcome of the affair appears in a piece of news published in the Gazette de France on June 21, 1642.