Lieven, Dorothea Princess.

• Letters of Dorothea, Princess Lieven, during her residence in London, 1812-1834
• Letters of Princess Lieven to Lady Holland 1847-1857
• The Lieven-Palmerston correspondence 1828-56
• The private letters of Princess Lieven to Prince Metternich, 1820-1826
• The unpublished diary and political sketches of Princess Lieven