Name
- Löwis, Friedrich, of Menar; Russian general1
- Mackintosh, James, philosopher1
- Maltitz, Petr Fedorovich, Baron, Russian diplomatist1
- Maltzahn, H. Albert, Baron, Minister of the Duke of Holstein-Oldenburg1
- Manvers, Cornelia1
- Mappes, Henry and Conrad, wine merchants, of Mainz and Hattenheim1
- Maret, Hugues Bernard, Due de Bassano, French Minister for Foreign Affairs1
- Maria Elizabetha Francesca, wife of Reinhardt, Archduke of Austria1
- Marie Thérèse Charlotte, Princess Royal of France, wife of Louis Antoine, Duc d'Angoulême1
- Martens, Baron? -, formerly Russian army officer; alias 'Mr. Miller'1
- Martens, Georg Friedrich, German diplomatist and author1
- Martin de Tyrac, Marie Louis Auguste, Vicomte de Marcellus1
- Mayer Amschel Rothschild and Sons, bankers, Frankfurt1
- Medem, Aleksandr, Baron1
- Meierovich, Joseph, Russian army officer1
- Meller and Co, Auguste, bankers, of Bordeaux1
- Meneses-Coutinho, Pedro José Joachim Vito, Marquês de Marialva; Portuguese diplomatist1
- Menshikov, Aleksandr Sergeevich, Prince, Russian statesman, 1787-18671
- Mercy-Argenteau, François Joseph Charles Marie, Comte d'Ochain, Grand Chamberlain to William I of the Netherlands1
- Merle, Gibbons, journalist1