Former Owner
- Lucien Graux1
- Lucien Magne1
- Lucy Evans Chew1
- Ludwig Rosenthal's Antiquariaat2
- Luigi Celotti6
- Luigi Clerici1
- Luigi Cora1
- Luini, Pacifico (Franciscan priest), active 19th century1
- Luis Mayora1
- Mademoiselle de Malberghe1
- Madyan Qusuni1
- Maffeo Pinelli1
- Maggs Bros Ltd24
- Malachia Ormanian1
- Mannucci family1
- Mantell1
- Marc-René de Voyer d'Argenson1
- Marcantonio V Borghese1
- Marcela Gabriela1
- Marchese Porri-Carcani1