Name
- Keith, Robert Murray, Lieutenant-General; KB, Ambassador at Vienna1
- Krohn, Jacob1
- Latro, Giuseppe, Archbishop of Taranto, 1744-18361
- Lawrance, Thomas James, liverymaker1
- Lee, William, wine merchant1
- Lennox, Charles, 3rd Duke of Richmond and Lennox1
- Lloyd, J.1
- London Assurance House1
- Lorenzana, Francisco Antonio, Cardinal; Archbishop of Toledo1
- Lynch, William, Envoy to Sardinia1
- Macaulay, Colin, Lieutenant; of the Madras Army1
- Mackenzie, Francis Humberston, Baron Mackenzie of Kintail, Lord Seaforth1
- Mackenzie, Kenneth, Earl of Seaforth1
- Main, James L.1
- Maltese, Giacomo, of Rome1
- Manger, Daniel, of Folkestone1
- Martyn, Charles Fuller, of Calcutta1
- Maty, Matthew, Dr Principal Librarian British Museum1
- Mazzarella, Francesco1
- Meyrick, John, of Add MS 420711