'Many letters of hers, even when writing from abroad to fight off her marriage, had been preserved by the King. Some were in the possession of Sir William Knighton,[79] who had obtained possession of the King's correspondence, either as being his executor, or from having Colonel MacMahon's letters in his custody. She had, also, various letters of her own, from the Prince. It was, therefore, agreed, by the friends of both parties, that, with a few exceptions, the whole correspondence should be destroyed. 'In this arrangement, William the Fourth kindly concurred, and it was carried into effect; only such papers being preserved as Mrs. Fitzherbert thought fit to select to bear witness to her character. * * * * * 'Upon one memorable exception, only, she was called upon by the Prince; and, indeed, expressly sent for to Brighton, to give her opinion on a step of great political importance which he was about to take, but her influence, then, had been, some time, on the wane. He told her that he had sent for her to ask her opinion, and that he demanded it of her, with regard to the party to which he was about, as Regent, to confide the administration of the country. At his commands, she urged in the most forcible manner that she was able, his adherence to his former political friends. Knowing all his engagements to that party, she used every argument and every entreaty to induce him not to sever himself from them. "Only retain them, Sir, six weeks in power. If you please, you may find some pretext to dismiss them at the end of that time; but do not break with them without some pretext or other." Such was her request to him. He answered, "It was impossible, as he had promised"; but, at the same time, she observed that he seemed much overpowered by the effort it cost him. Finding that resistance to a determination so fixed was unavailing, she asked to be allowed to return to Brighton, which she did; but, previously to leaving him, she said that, as he had done her the honour of imposing upon her his commands of freely declaring her sentiments upon this occasion, she hoped he would permit her, before she left him, to offer one suggestion, which she trusted he would not take amiss. 'She then urged upon him, as strongly as she was able, the disadvantages which must accrue to his future happiness from treating his daughter, the Princess Charlotte, with so little kindness. "You, now, Sir," she said, "may mould her at your pleasure, but, soon, it will not be so; and she may become, from mismanagement, a thorn in your side, for life." "That is your opinion, Madam," was his only reply.