Former Owner
- London School of Jewish Studies3
- Long Island Historical Society, Maine1
- Lorenzo Antonio da Ponte1
- Louis Bourguet1
- Louis Charles Elson3
- Louis César de La Baume Le Blanc5
- Louis H. Silver10
- Louis Jean Gaignat1
- Louis Thompson Rowe1
- Louis XII of France2
- Louis XIV of France1
- Louis d'Aumont de Rochebaron1
- Louis de Gruuthuse2
- Lucien Gougy2
- Lucien Graux1
- Lucien Magne1
- Lucy Evans Chew1
- Ludwig Rosenthal's Antiquariaat2
- Luigi Celotti6
- Luigi Clerici1