Madame made a second journey to England, for the purpose of concluding a private treaty, between her brother, and the French monarch, and of detaching the former from his alliance with Holland. On this occasion, she was accompanied by the celebrated Mademoiselle de la Quérouaille, afterwards Duchess of Portsmouth, who had also her sealed orders. The mission was successful, though neither advantageous, nor honourable, as far as England was concerned. Madame returned in triumph, took up her abode at the Palace of St. Cloud, and appeared to have reached the zenith of worldly prosperity, always excepting the unhappy difference, with her husband, which commenced so soon after their marriage, and had increased rather than diminished. Her tried friend, and trusty confidant in these trials, was Cosnac, Bishop of Valence, afterwards Archbishop of Aix, a distinguished, but eccentric man. At twenty-four years of age, he preached a sermon, which made such an impression on the mind, of Mazarin, the Cardinal Minister, that on the conclusion of the service, he promised the preacher a bishopric; what he called “faire un maréchal de France sur la brêche.” Cosnac was afterwards appointed almoner to Monsieur, and resided with him, for some time, during which period, he endeavoured to gain an influence for good, over the mind of this fickle, and vacillating Prince, and often expostulated with him, on his conduct to the Duchess. They quarrelled, and separated, but his indignation against Monsieur’s unworthy favourite, the Chevalier de Loraine, so enraged the Duke that he contrived to procure a sentence of exile, against Cosnac. But absence could not sever the bonds of friendship, which bound him to Henrietta, and of which he gave a valuable proof, on the occasion of a libel, that was published against her in Holland, at the time of her negociations between England, and France. The Duchess dreaded lest the scurrilous pamphlet, most damaging to her reputation, should fall into her husband’s hands, and she wrote off in terror to her exiled friend, to ask his assistance. Cosnac immediately despatched an emissary to Holland, who did his work so effectually, that the whole edition was bought up, the publication stopped, and all the extant copies brought over, to be destroyed by this zealous friend. As in duty bound, “Madame” worked hard to obtain the Bishop’s recall, so much so that the King thought her attachment to him, must be of a more tender nature than she confessed. Louis XIV., in all probability, was not a good judge of friendship, or a believer in it, where a woman was concerned.