- Lensi, Lorenzo1
- Lenzi, Giovanni, 1963-1
- Leo XI, Pope, 1535-16051
- Letter writing, German1
- Letter writing, Persian1
- Letter writing, Turkish1
- Letters, Papal1
- Libraries1
- Liebfrauenkirche (Halberstadt, Germany)1
- Limp bindings1
- Lion hunting1
- Lippomano, Luigi, 1500-15591
- Literary style1
- Liturgical lessons1
- Liturgics--Texts1
- Local officials and employees--Salaries, etc.1
- Lord's Supper--Catholic Church--History of doctrines1
- Lord's prayer1
- Lorenzo, Betto di1
- Lorenzo, Giovanni Battista di1