- Lenzi family1
- Leo X, Pope, 1475-15211
- Leo XI, Pope, 1535-16051
- Letter writing1
- Limp bindings1
- Lippomano, Luigi, 1500-15591
- Liturgical books1
- Local government--Law and legislation1
- Lord's prayer1
- Love poetry, Latin (Medieval and modern)1
- Ludovico Sforza, Duke of Milan, 1452-15081
- Lute music1
- Machiavelli family1
- Malatesta family1
- Malatesta, Sigismondo Pandolfo, signore di Rimini, 1417-14681
- Manuscript fragments1
- Manuscripts, Catalan1
- Manuscripts, English1
- Manuscripts, French1
- Manuscripts, German1