LIEVEN PAPERS. Vols. CXLVIII, CXLIX (ff. 288, 309). Correspondence with Emily Mary, wife of Peter, 5th Earl Cowper, and (1839) of Henry, 3rd Viscount Palmerston, including (47368, f. 6) a letter, 5 Aug. 1830, in English, from Henry, 1st Baron Brougham and Vaux, to Lady Cowper; Vol. CXLVIII, bef. 1826-1839; Vol. CXLIX, 1840-1854, n.d. French. Supplementary to correspondence in the Lamb Papers, Add. MSS. 45555, 45556. Many are printed in translation in Lord Sudley, The Lieven - Palmerston Corr...
LIEVEN PAPERS. Vols. CXXIII, CXXIV (ff. 223, 137). Correspondence with Frederick, Duke of York and Albany, 2nd son of George III, including (47348, f. 172) a letter, July 1823, in English, from Sarah Sophia Child-Villiers, wife of George, 5th Earl of Jersey, to the Duke of York, and followed (47349, ff. 43-137) by letters from his wife, Frederica Charlotte Ulrica Catherina; Vol. CXXIII, 1819-1824; Vol. CXXIV, 1825, 1826, and 1817-1820. French.
LIEVEN PAPERS. Vols. CXXV, CXXVI, CXXVII (ff. 171, 157, 202). Letters from Ernest Augustus, Duke of Cumberland, King of Hanover 1837; Vol. CXXV, 1816-1837; Vol. CXXVI, 1838-1841; Vol. CXXVII, 1842-1848. English and French.
LIEVEN PAPERS. Vols. CL, CLI (ff. 202, 244). Correspondence with Baron Petr Kazimirovich Meyendorff, Russian diplomatist, including (47370, f. 62) a copy, in Russian, of an imperial manifesto, 14/26 Mar. 1848, against the spread of revolution from France; Vol. CL, 1836-1854; Vol. CLI, 1855, 1856, n.d. French. A few letters are published in O. Hoetzsch, Peter von Meyendorff: ein russischer Diplomat an den Höfen von Berlin und Wien, 3 vols., 1923.