Author
- Marcus Manilius1
- Martianus Capella1
- Martin Luther1
- Martin of Braga1
- Martin of Opava1
- Martin of Tours1
- Matteo dei Libri1
- Matthaeus Platearius1
- Matthew Paris1
- Matthew of Vendôme1
- Maximus of Turin1
- Medingen Abbey1
- Michael Glycas1
- Michel Foret1
- Michele Zopello1
- Michell Archer1
- Miguel de la Peña1
- Miles Huggarde1
- Monastery of San Andrés de Fanlo1
- Mordechai ben Hillel1