Name
- Lucci, Domenico, Secretary to Card. F A Gualterio2
- MacMahon, Hugh, R C Bishop of Clogher and Achbishop of Armagh2
- Macañaz, Melchior Rafael, Fiscal General del Consejo2
- Magenis, Arthur, Irish Colonel in the French Service2
- Maggio, Melchiore2
- Marcolini, Pietro Paolo2
- Mareigli, Luigi Ferdinando, Conte, General2
- Maria Elisabeth, Governor of the Netherlands, daughter of Emperor Leopold I2
- Marini, Carlo, Cardinal, Legate of Urbino2
- Marliani, Ercole2
- Marquesi, - de', Chevalier2
- Mascara, Torriano, Abbate2
- Masini, Pietro Francesco, Governor of Bertinoro and Forlimpopoli2
- Massei, Bartolomeo, Cardinal, Archbishop of Athens, and Nuncio to France2
- Maximilian II, Emanuel Maria, Elector of Bavaria, 1662-17262
- Mayes, Lawrence, Abbé2
- Mazzolari, Francesco Maria, Governor of Cervia2
- Metternich, Franz Arnold Joseph Wolff, Bishop of Münster2
- Middleton, Charles, 2nd Earl of Middleton2
- Missiroli, Giovanni Battista, Bishop of Bertinoro2