Name
- Lavrov, Nikolai Ivanovich, Russian general1
- Law, Anne, wife of Edward 1st Baron Ellenborough, 1769?-18431
- Leardi, Paolo, Archbishop of Ephesus; Apostolic Nuncio to Austria1
- Ledebour, Carl Friedrich, botanist, of Dorpat1
- Lefebvre, Secretary of the French Legation at Berlin1
- Leiningen, Prince of, of Add MS 472941
- Leslie-Melville, Alexander, 9th Earl of Leven1
- Levin, Karl1
- Liddell, Thomas Henry, 1st Baron Ravensworth1
- Lieven, Christoph Heinrich, Prince, Russian diplomatist1
- Long, Charles, GCB, Baron Farnborough (1826), Lord of the Treasury, etc1
- Lopukin, K.1
- Lowry, James, surgeon1
- Lowther, William, Viscount Lowther, 2nd Earl of Lonsdale1
- Lubomirsky, Katerina Nikolaevna, née Tolstoi; wife of Prince K X Lubomirsky1
- Ludolf, Guglielmo di, Conte; Sicilian Minister in London1
- Ludwig, of Add MS 472861
- Ludwigs, formerly Secretary to Count Rumyantsov1
- Lunin, Petr1
- Löhnis, E. P., wine-merchant, of Rotterdam1