- Local officials and employees--Salaries, etc.1
- Logic, Ancient1
- Lombards1
- Lopez Bulhão, Antonio, active 1510-15151
- Lord's Supper--Catholic Church--History of doctrines1
- Lorenzo, Betto di1
- Lorenzo, Giovanni Battista di1
- Lorenzo, Guidone di1
- Lorenzo, Lello di1
- Lorenzo, Vanna di1
- Lotti, Piero1
- Louis IX, King of France, 1214-12701
- Louis, Saint, Bishop of Toulouse, 1274-12971
- Love poetry, English (Middle)1
- Love poetry, French1
- Love poetry, Latin1
- Love songs1
- Lucan, 39-651
- Lumbres, Ernulfus de1
- Lupi, Mea1