- Leisure--Religious aspects--Christianity1
- Lemos, Pedro Fernández de Castro, conde de, 1576-16221
- Lent--Liturgy1
- Leo XI, Pope, 1535-16051
- Leocadia, Saint, -3031
- Leprosy1
- Leprosy--Treatment1
- Letter of Aristeas1
- Letter writing, French1
- Letter writing, Hebrew1
- Letter writing, Latin1
- Lexicology1
- León, Luis de, 1527-15911
- Libel and slander--Religious aspects--Islam1
- Liber sextus decretalium (Catholic Church)1
- Libri amicorum1
- Libya--Tripoli1
- Lilium medicinae (Bernard, de Gordon)1
- Lion1
- Lists1