When next sent to Russia, d’Eon was sent as minister plenipotentiary, an office which he held up to 1762 when to the regret of the Empress he was recalled. When he was leaving, Woronzow, the successor of Bestuchéf, said to him, “I am sorry you are going, although your first journey with Chevalier Douglas cost my sovereign 250,000 men and more than 5,000,000 roubles.” D’Eon answered: “Your excellency ought to be happy that your sovereign and his minister have gained more glory and reputation than any others in the world.” On his return d’Eon was appointed to the regiment d’Autchamp and gazetted as adjutant to Marshal de Broglie. Then he was sent to Russia for the fourth time as minister plenipotentiary in place of Baron de Breuteuil. But Peter III was dethroned, so the out-going Ambassador remained in Russia, and d’Eon went to England as secretary to the Embassy of the Duke de Nivernais in 1762. After the Peace of 1763 d’Eon was chosen by the King of England to carry the despatches. He received for this office the Star of St. Louis from the breast of the king, who on giving it said it was for the bravery which he had displayed as a soldier, and for the intelligence which he had shown in the negotiations between London and St. Petersburg. At this time all went well with him. But his good fortune was changed by the bitter intrigues of his enemies. He was devoted to the king, but had, almost as a direct consequence, the enmity of the courtesans who surrounded him and wished for the opportunity of plucking him at their leisure. He had an astonishing knowledge on all matters of finance, and apprised the king privately of secret matters which his ministers tried to hide from him. The Court had wind of that direct correspondence with his majesty and therewith things were so managed that the diplomatist got into trouble. Madame de Pompadour surprised the direct correspondence between the king and d’Eon, with the result that the latter was persecuted by the jealous courtiers who intrigued, until in 1765 he was replaced at the Embassy of London by the Count de Guerchy and he himself became the mark for all sorts of vexations and persecutions. His deadly enemy, the Count de Guerchy, tried to have him poisoned, but the attempt failed. D’Eon took legal steps to punish the attempt; but every form of pressure was used to keep the case out of Court. An attempt was made to get the Attorney General to enter a _nolle prosequi_; but he refused to lend himself to the scheme, and sent the matter to the Court of King’s Bench. There, despite all the difficulties of furthering such a charge against any one so protected as an ambassador, it was declared on trial that the accused was guilty of the crime charged against him. De Guerchy accordingly had to return to France; but d’Eon remained in England, though without employment. To console him King Louis gave him in 1766 a pension of 12,000 livres, and