A little further on is Upper Brook Street, where once lived Lord George Gordon, famous for his connection with the anti-Catholic riots, which, had not George III. acted with splendid promptitude, might have resulted in a holocaust of London. Here also resided George Grenville, the statesman and creator of that marvellous library which is, to-day, one of the wonders of the British Museum; Mrs. Damer, the talented friend of Horace Walpole, for whom she executed the Eagle which once stood in the Tribune at Strawberry Hill; and Hamilton, of “single speech” fame. [Sidenote: UPPER GROSVENOR STREET.] As Upper Brook Street joins the north side of Grosvenor Square with Park Lane, so Upper Grosvenor Street leads directly from its southern side to that latter-day synonym for worldly riches. Here lived such notable people as Lord Erskine, the great lawyer, Sir Robert Peel, and also Lord Crewe, who appears to have moved hither from Grosvenor Street, or, as we ought to say, Lower Grosvenor Street. But the chief feature of the street is Grosvenor House, the well-known residence of the Duke of Westminster, the fine screen and gates of which, designed by Candy, were put up in 1842, and form a curious break in the otherwise unbroken regularity of the houses. I shall have something to say about Grosvenor House, when we come to Park Lane; so that now we need not interrupt our walk, which in a moment will bring us to Mount Street, taking its name from “Oliver’s Mound,” formerly in Grosvenor Square. [Sidenote: MOUNT STREET.] Mount Street dates from about 1740, but since then it has been wholly rebuilt with red-brick structures, the majority of which are now shops, with flats above them, and thus preserves nothing of its earlier character, when such as Lady Mary Coke, the compiler of a most valuable and delightful diary, Fanny Burney (Madame D’Arblay), whose work in the same direction is, known to all the world, and Sir Henry Holland, who has also left us his reminiscences, lived in it. From Mount Street we pass easily, by way of South Audley Street, to that congeries of thoroughfares, which lie between Berkeley Square and Park Lane. [Sidenote: ALDFORD STREET.]