- Kingdom of God1
- Land tenure1
- Language and languages--Philosophy1
- Latin language, Medieval and modern--Grammar1
- Latin language, Medieval and modern--Study and teaching1
- Lectionaries1
- Legal forms1
- Letter writing, Latin1
- Letter writing--Handbooks, manuals, etc--Early works to 18001
- Liturgical books1
- Logic1
- Manuscripts, Dutch1
- Manuscripts, English1
- Manuscripts, Greek1
- Manuscripts, Hebrew1
- Manuscripts, Renaissance1
- Mary, Blessed Virgin, Saint1
- Materia medica1
- Maximus, of Turin, Saint, active 4th century-5th century1
- Mediterranean Region1