Author
- Maffeo Vegio1
- Magister Contarinus1
- Mahmud Abubekhr ben Mahmud Tabrizi1
- Marbodius of Rennes1
- Marcantonio Aldegati1
- Marceiu Vinnen1
- Marcus Manilius1
- Martin Merz1
- Martin V1
- Matteo Palmieri1
- Matteo Piccolomini1
- Matthaeus Platearius1
- Maḥmūd ibn Abī Bakr Faraḍī1
- Michael Glycas1
- Michel Foret1
- Monastery of San Andrés de Fanlo1
- Niccolò Balsamo1
- Niccolò Lelio Cosmico1
- Nicholas Love1
- Nicholas Trivet1