- Lenzi family1
- Leo X, Pope, 1475-15211
- Leo XI, Pope, 1535-16051
- Letter writing1
- Lippomano, Luigi, 1500-15591
- Local government--Law and legislation1
- Local officials and employees1
- Lord's prayer1
- Love1
- Love poetry, Latin (Medieval and modern)1
- Love songs1
- Ludovico Sforza, Duke of Milan, 1452-15081
- Lute music1
- Machiavelli family1
- Madrigals, Italian1
- Malatesta family1
- Malatesta, Sigismondo Pandolfo, signore di Rimini, 1417-14681
- Mancini, Girolamo, 1832-19241
- Manuscripts, Catalan1
- Manuscripts, German1