Name
- Mary, of Scotland1
- Mattaleno di Porta Casa?, Tribune of Rome, after Rienzi1
- Mauricius, Sanctus1
- Mazarino, Giulio, Cardinal1
- Mead, Richard, physician and collector of books and art, 1673-17541
- Medici, Catherine, Queen Consort of Henry II, King of France; Queen Mother of Francois II, Charles IX and Henri III, Kings of France, 1519-15891
- Mennius, Joannes Rainaldus1
- Mesczerskoy, S- P-1
- Mestrius Plutarchus, Lucius, c 46-after 120, http://isni.org/isni/000000...1
- Metastasio, Pietro Antonio Domenico Bonaventura, poet and librettist, 1698-17821
- Minutoli, Vincenzo1
- Montagu, Charles, Earl of Halifax, of Add Ch 59681
- Montagu, Edward, General; afterwards Earl of Sandwich1
- Montfaucon, Bernard1
- Mordaunt, Charles, Earl of Peterborough, of Add MS 121021
- Mornay, Philippe de, seigneur du Plessis-Marly, also known as Duplessis-Mornay, 1549-16231
- Motte, Family1
- Muratori, Lodovico Antonio, of Add MS 121101
- Muretus, Marcus Antonius1
- Musatus, Albertinus, Patavinus1