Barons | Titles by Rank
- Barons of Montfaucon
- Barons of Montforte
- Barons of Montgomery
- Barons of Monthemer
- Barons of Montjoie
- Barons of Montjoye et de la Roche
- Barons of Montpellier de Vedrin
- Barons of Montrond
- Barons of Montsoreau
- Barons of Monville
- Barons of Moosberg
- Barons of Moosburg
- Barons of Mora
- Barons of Morainville
- Barons of Moreau
- Barons of Moreira
- Barons of Moreira Lima
- Barons of Morenos
- Barons of Morialme
- Barons of Moribeca
- Barons of Morien
- Barons of Morogues
- Barons of Morsay
- Barons of Mörsberg
- Barons of Morsey
- Barons of Mörsperg
- Barons of Morton
- Barons of Mossâmedes
- Barons of Mossoró
- Barons of Mota Maia
- Barons of Mota Pais
- Barons of Mougins-Roquefort
- Barons of Mount Temple
- Barons of Muaná
- Barons of Muckadell
- Barons of Mucuri
- Barons of Müllenheim Rechberg
- Barons of Mullingar
- Barons of Münchhausen
- Barons of Mundaú
- Barons of Münzescheim
- Barons of Münzesheim
- Barons of Münzesheim
- Barons of Muriaé
- Barons of Murici
- Barons of Muritiba
- Barons of Mutzenbecher
- Barons of Mylius
- Barons of Nacar
- Barons of Nagé