Hess's affair was an atrocity of the Princess of Wales. She employed him to convey letters to her daughter while she used to ride in Windsor Park, which he contrived to deliver, and occasionally to converse with her; and on one occasion, at Kensington, the Princess of Wales brought them together in her own room. The Princess afterwards wrote him some letters, not containing much harm, but idle and improper. When the Duke of York's affair with Mrs. Clark came out, and all the correspondence, she became very much alarmed, told Miss Mercer the whole story, and employed her to get back her letters to Hess. She accordingly wrote to Hess (who was then in Spain), but he evinced a disinclination to give them up. On his return to England she saw him, and on his still demurring she threatened to put the affair into the Duke of York's hands, which frightened him, and then he surrendered them, and signed a paper declaring he had given up everything. The King afterwards heard of this affair, and questioning the Princess, she told him everything. He sent for Miss Mercer, and desired to see the letters, and then to keep them. This she refused. This Captain Hess was a short, plump, vulgar-looking man, afterwards lover to the Queen of Naples, mother of the present King, an amour that was carried on under the auspices of the Margravine at her villa in the Strada Nova at Naples. It was, however, detected, and Hess was sent away from Naples, and never allowed to return. I remember finding him at Turin (married), when he was lamenting his hard fate in being excluded from that _Paradiso_ Naples. September 28th, 1832 {p.321} [Page Head: BELGIUM, SPAIN, FRANCE.] At Stoke from the 22nd to the 26th, then to the Grove, and returned yesterday; at the former place Madame de Lieven, Alvanley, Melbourne; tolerably pleasant; question of war again. The Dutch King makes a stir, and threatens to bombard the town of Antwerp; the French offered to march, and put their troops in motion, but Leopold begged they would not, and chose rather to await the effect of more conferences, which began with great vigour a few days ago. What they find to say to each other for eight or ten hours a day for several consecutive days it is hard to guess, as the question is of the simplest kind. The King of Holland will not give up the citadel of Antwerp, nor consent to the free navigation of the Scheldt; the Belgians insist on these concessions; the Conference says they shall be granted, but Russia, Prussia, and Austria will not coerce the Dutchman; England and France will, if the others don't object. A French army is in motion, and a French fleet is off Spithead; so probably something will come of it. Nothing has damaged this Government more than these protracted and abortive conferences.