Name
- Melani, Enea Gaetano1
- Merlini, Christoforo1
- Merode, Jan Filips Eugenius, Count of Merode and Marquis of Westerloo1
- Metternich, Franz Arnold Joseph Wolff, Bishop of Münster1
- Mexia Felipez de Guzman, Diego, 3rd Marqués de Leganes; Duque de San Lucar1
- Mobant, Thomas, Chevalier1
- Molara, Pietro Annibale, of Rome1
- Molines, José, Auditor of the Rota, Inquisitor-General of Spain1
- Montelli, Pietro1
- Monti, Pompeio del1
- Morales, Luigi Antonio1
- Mordaunt, Charles, 1st Earl of Monmouth and 3rd Earl of Peterborough, Commander-in-Chief in Spain, and Ambassador in Spain, Germany, Rome, etc, c 1658-17351
- Motta e Silva, Joao da, Cardinal Portuguese Secretary of State1
- Moura, Eleonora, Marquesa de Castel Rodrigo1
- Moura-Contarini, Juaña, Marquesa de Castel Rodrigo; wife of D Contarini, Venetian Ambassador at Vienna1
- Murray Colonel, John, of Abercairny1
- Nairne, David, Under-Secretary of State to the 'Old Pretender'1
- Negrone, Nicolo, Governor of Ascoli1
- Neufville, François, Duc de Villeroy, Marshal of France1
- Noailles, Louis Antoine, Cardinal Archbishop of Paris1