- Liber sextus decretalium (Catholic Church)1
- Library catalogs1
- Library copies1
- Liebfrauenkirche (Halberstadt, Germany)1
- Limp bindings1
- Lists1
- Litanies--Catholic Church1
- Little office of the Blessed Virgin Mary (Catholic Church)1
- Liturgies1
- Livres de chant liturgique1
- Lord's Supper--Adoration1
- Lord's Supper--Catholic Church1
- Lord's Supper--Catholic Church--History of doctrines1
- Louis, Saint, Bishop of Toulouse, 1274-12971
- Love1
- Ludwig IV, Holy Roman Emperor, 1282?-13471
- Luke, Saint1
- Lumbres, Ernulfus de1
- Lydgate, John, 1370?-1451?1
- Magic1