When M. de Brissac died, there seemed some probability that his peerage would become extinct; for the Comte de Cosse, who claimed to succeed him, was opposed by a number of peers, and but for me might have failed to establish his pretensions. I, however, as his claim was just, interested myself in him, supported him with all my influence, and gained for him the support of several influential peers: so that in the end he was recognised as Duc de Brissac, and received as such at the parliament on the 6th of May, 1700.

Having succeeded thus to the titles and estates of his predecessor, he succeeded also to his liabilities, debts, and engagements. Among these was the trial against me for five hundred thousand francs. Cosse felt so thoroughly that he owed his rank to me, that he offered to give me five hundred thousand francs, so as to indemnify me against an adverse decision in the cause. Now, as I have said, I not only resisted this demand made upon me for five hundred thousand francs, but I, in my turn, claimed two hundred thousand francs, and my claim, once admitted, all the personal creditors of the late Duc de Brissac (creditors who, of course, had to be paid by the new Duke) would have been forced to stand aside until my debt was settled.

I, therefore, refused this offer of Cosse, lest other creditors should hear of the arrangement, and force him to make a similar one with them. He was overwhelmed with a generosity so little expected, and we became more intimately connected from that day.

Cosse, once received as Duc de Brissac, I no longer feared to push forward the action I had commenced for the recovery of the two hundred thousand francs due to me, and which I had interrupted only on his account. I had gained it twice running against the late Duc de Brissac, at the parliament of Rouen; but the Duchesse d'Aumont, who in the last years of his life had lent him money, and whose debt was in danger, succeeded in getting this cause sent up for appeal to the parliament at Paris, where she threw obstacle upon obstacle in its path, and caused judgment to be delayed month after month. When I came to take active steps in the matter, my surprise—to use no stronger word—was great, to find Cosse, after all I had done for him, favouring the pretensions of the Duchesse d'Aumont, and lending her his aid to establish them. However, he and the Duchesse d'Aumont lost their cause, for when it was submitted to the judges of the council at Paris, it was sent back to Rouen, and they had to pay damages and expenses.

For years the affair had been ready to be judged at Rouen, but M. d'Aumont every year, by means of his letters of state, obtained a postponement. At last, however, M. d'Aumont died, and I was assured that the letters of state should not be again produced, and that in consequence no further adjournment should take place. I and Madame de Saint-Simon at once set out, therefore, for Rouen, where we were exceedingly well received, fetes and entertainments being continually given in our honour.

After we had been there but eight or ten days, I received a letter from Pontchartrain, who sent me word that the King had learnt with surprise I was at Rouen, and had charged him to ask me why I was there: so attentive was the King as to what became of the people of mark, he was accustomed to see around him! My reply was not difficult.

Meanwhile our cause proceeded. The parliament, that is to say, the Grand Chamber, suspended all other business in order to finish ours. The affair was already far advanced, when it was interrupted by an obstacle, of all obstacles the least possible to foresee. The letters of state had again been put in, for the purpose of obtaining another adjournment.

My design is not to weary by recitals, which interest only myself; but I must explain this matter fully. It was Monday evening. The parliament of Rouen ended on the following Saturday. If we waited until the opening of the next parliament, we should have to begin our cause from the beginning, and with new presidents and judges, who would know nothing of the facts. What was to be done? To appeal to the King seemed impossible, for he was at Marly, and, while there, never listened to such matters. By the time he left Marly, it would be too late to apply to him.

Madame de Saint-Simon and others advised me, however, at all hazards, to go straight to the King, instead of sending a courier, as I thought of doing, and to keep my journey secret. I followed their advice, and setting out at once, arrived at Marly on Tuesday morning, the 8th of August, at eight of the clock. The Chancellor and Chamillart, to whom I told my errand, pitied me, but gave me no hope of success. Nevertheless, a council of state was to be held on the following morning, presided over by the King, and my petition was laid before it. The letters of state were thrown out by every voice. This information was brought to me at mid-day. I partook of a hasty dinner, and turned back to Rouen, where I arrived on Thursday, at eight o'clock in the morning, three hours after a courier, by whom I had sent this unhoped-for news.

I brought with me, besides the order respecting the letters of state, an order to the parliament to proceed to judgment at once. It was laid before the judges very early on Saturday, the 11th of August, the last day of the parliament. From four o'clock in the morning we had an infinite number of visitors, wanting to accompany us to the palace. The parliament had been much irritated against these letters of state, after having suspended all other business for us. The withdrawal of these letters was now announced. We gained our cause, with penalties and expenses, amid acclamations which resounded through the court, and which followed us into the streets. We could scarcely enter our street, so full was it with the crowd, or our house, which was equally crowded. Our kitchen chimney soon after took fire, and it was only a marvel that it was extinguished, without damage, after having strongly warned us, and turned our joy into bitterness. There was only the master of the house who was unmoved. We dined, however, with a grand company; and after stopping one or two days more to thank our friends, we went to see the sea at Dieppe, and then to Cani, to a beautiful house belonging to our host at Rouen.