Barons | Titles by Rank
- Barons of Loë
- Barons of Loën
- Barons of Longeüil
- Barons of Longua
- Barons of Lopes Neto
- Barons of Lopez de Torreguay
- Barons of Lordelo
- Barons of Lorena
- Barons of Loreto
- Barons of Lottersberg
- Barons of Lotzbeck
- Barons of Loudon
- Barons of Louredo
- Barons of Lourenço Martins
- Barons of Louriçal
- Barons of Louth
- Barons of Lovendal
- Barons of Lovendeghem
- Barons of Löwenstein
- Barons of Löwenthal-Maroicic von Madonna del Monte
- Barons of Lucé
- Barons of Lucena
- Barons of Luchen
- Barons of Ludenhoff
- Barons of Lüdinghausen-Wolff
- Barons of Lumay
- Barons of Lumen
- Barons of Lunel
- Barons of Lüninck
- Barons of Luso
- Barons of Lustrac
- Barons of Lüttwitz
- Barons of Luxe
- Barons of Maasburg
- Barons of Macabu
- Barons of Macaé
- Barons of Maçambará
- Barons of Macaúbas
- Barons of Macchia
- Barons of Maceió
- Barons of Maciel
- Barons of Madalena
- Barons of Madruce
- Barons of Madruzzo
- Barons of Maella
- Barons of Maere d' Aertrycke
- Barons of Magalhães
- Barons of Magé
- Barons of Magnac
- Barons of Mahrenfels