- Letter writing, Latin1
- León, Luis de, 1527-15911
- Liber sextus decretalium (Catholic Church)1
- Libraries1
- Libri amicorum1
- Libya--Tripoli1
- Lilium medicinae (Bernard, de Gordon)1
- Lists1
- Lithuania--Žagarė1
- Little office of the Blessed Virgin Mary (Catholic Church)1
- Liturgical lessons1
- Liturgy and poetry1
- Logarithms1
- Logic, Ancient1
- Lombards1
- Longevity--Religious aspects--Islam1
- Louis, Saint, Bishop of Toulouse, 1274-12971
- Love in literature1
- Love poetry, English (Middle)1
- Love poetry, Indic1