- Latin letters, Medieval and modern1
- Latin literature, Medieval and modern1
- Lazari, Marlinus Micarias1
- Lead industry and trade1
- Learning and scholarship1
- Lefèvre d'Étaples, Jacques, -15361
- Legal documents1
- Legal maxims (Canon law)1
- Legal maxims (Roman law)1
- Leicester, Robert Dudley, Earl of, 1532?-15881
- Lent--Liturgy1
- Lenzi family1
- Leprosy1
- Leprosy--Treatment1
- Letters, Papal1
- Libations1
- Liber sextus decretalium (Catholic Church)1
- Light--Religious aspects1
- Lion--Mythology1
- Lippomano, Luigi, 1500-15591