Author
- Johannes Milis1
- Johannes Nider1
- Johannes von Kastl1
- John Cornelius1
- John Frederick II of Saxony1
- John Halgren of Abbeville1
- Josephus1
- Lieb Hirsh1
- Marbodius of Rennes1
- Martin of Braga1
- Martin of Opava1
- Martin of Tours1
- Matthaeus Platearius1
- Matthias von Liegnitz1
- Maximus of Turin1
- Michael of Massa1
- Nicholas Trivet1
- Nicolaus von Amsdorf1
- Nilus of Sinai1
- Otto of Passau1