Since his return from Italy, he had almost always lived at his little house of Saint Gratien, beyond Saint Denis, where he bore with wisdom the injury that had been done him and the neglect he had experienced upon his return, surrounded by his family and a small number of friends. Chamillart one day sent for him, saying that he had the King's order to talk with him. Catinat went accordingly to Chamillart, from whom he learned that he was destined for the Rhine; he refused the command, and only accepted it after a long dispute, by the necessity of obedience.
On the morrow, the 11th of March, the King called Catinat into his cabinet. The conversation was amiable on the part of the King, serious and respectful on the part of Catinat. The King, who perceived this, wished to make him speak about Italy, and pressed him to explain what had really passed there. Catinat excused himself, saying that everything belonged to the past, and that it was useless now to rake up matters which would give him a bad opinion of the people who served him, and nourish eternal enmity. The King admired the sagacity and virtue of Catinat, but, wishing to sound the depths of certain things, and discover who was really to blame, pressed him more and more to speak out; mentioning certain things which Catinat had not rendered an account of, and others he had been silent upon, all of which had come to him from other sources.
Catinat, who, by his conversation of the previous evening with Chamillart, suspected that the King would say something to him, had brought his papers to Versailles. Sure of his position, he declared that he had not in any way failed to render account to Chamillart or to the King, and detailed the very things that had just been mentioned to him. He begged that a messenger might be despatched in order to search his cassette, in which the proofs of what he had advanced could be seen, truths that Chamillart, if present, he said, would not dare to disavow. The King took him at his word, and sent in search of Chamillart.
When he arrived, the King related to him the conversation that had just taken place. Chamillart replied with an embarrassed voice, that there was no necessity to wait for the cassette of Catinat, for he admitted that the accusation against him was true in every respect. The King, much astonished, reproved him for his infidelity in keeping silence upon these comments, whereby Catinat had lost his favour.
Chamillart, his eyes lowered, allowed the King to say on; but as he felt that his anger was rising; said. "Sire, you are right; but it is not my fault."
"And whose is it, then?" replied the King warmly. "Is it mine?"
"Certainly not, Sire," said Chamillart, trembling; "but I am bold enough to tell you, with the most exact truth, that it is not mine."
The King insisting, Chamillart was obliged to explain, that having shown the letters of Catinat to Madame de Maintenon, she had commanded him to keep them from his Majesty, and to say not a syllable about them. Chamillart added, that Madame de Maintenon was not far off, and supplicated the King to ask her the truth of this matter.
In his turn, the King was now more embarrassed than Chamillart; lowering his voice, he said that it was inconceivable how Madame de Maintenon felt interested in his comfort, and endeavoured to keep from him everything that might vex him, and without showing any more displeasure, turned to Marshal Catinat, said he was delighted with an explanation which showed that nobody was wrong; addressed several gracious remarks to the Marshal; begged him to remain on good terms with Chamillart, and hastened to quit them and enter into his private cabinet.
Catinat, more ashamed of what he had just heard and seen than pleased with a justification so complete, paid some compliments to Chamillart, who, out of his wits at the perilous explanation he had given, received them, and returned them as well as he could. They left the cabinet soon after, and the selection of Catinat by the King for the command of the army of the Rhine was declared.