It was at this period that he became an admirer of the intriguing Duchesse de Bouillon (see Notes). This artful coquette now conceived a dangerous jealousy toward Mlle. Lecouvreur, which she concealed under a treacherous semblance of friendship and hospitality. Although the testimony in the case is somewhat contradictory, it seems nevertheless strongly indicated that the duchess desired to poison her rival. In order to carry out this plot, the duchess is said to have engaged one Simeon Bouret, a young painter of miniatures. He was born at Metz in 1711 and came to Paris in 1727 and again in 1728. According to his sworn testimony, it was while engaged in painting the portrait of the duchess that she tried to persuade him to call upon Mlle. Lecouvreur and to give her a love potion which would turn her from the Comte de Saxe to someone else. He was summoned to a number of secret meetings with two masked men who, as the emissaries of the duchess, continued to urge him to carry out her design. Convinced, however, that the real purpose was to poison Mlle. Lecouvreur, he revealed to her the plot and afterward brought to her some lozenges which had been left for him by the mysterious agents in a secret place. Upon opening the package, Mlle. Lecouvreur and two other persons--Bouret and the Comte de Saxe--who were present were made ill by the emanations of the enclosed chemicals. The lieutenant of police was immediately informed of the affair. That same day (July 29, 1729), Bouret was imprisoned at Saint-Lazare. Meantime, Claire-Joseph Geoffroy, of the Académie des Sciences, analyzed the lozenges but rendered a doubtful report upon them. In the various interrogations to which Bouret was subjected, he continued to repeat the story as above. Liberated, October 23, 1729, he was again thrust into prison, January 23, 1730, at the instigation of the Duke de Bouillon. The duchess, having been advised that public suspicion rested upon her, undoubtedly desired to accomplish the ruin of her tool, the unfortunate Bouret, in order to save herself. Bouret wrote, on August 8, 1730, a touching appeal to M. Hérault, lieutenant of police, in which he reiterated his innocence and attributed his continued imprisonment to his enemies. This letter bears the impress of truth. However, as nothing appeared to be accomplished by it, and he seemed to be destined to spend the rest of his days in prison, Bouret wrote again, August 24, to M. Hérault, this time a totally different letter, calculated to placate his enemies and secure his own liberation, even at the apparent expense of the truth. Having implored the pardon of the duchess, whom he now claimed to have falsely accused, he obtained a tardy release, on the third of June, 1731.