Former Owner
- Laurent Campagne1
- LeMare1
- Legoué1
- Leonardus Martinotius1
- Lepeletier de Rosanbo1
- Librairie Tross1
- Library of the Dominicans of Paris1
- Lodovicus Saltariellus1
- Louis César de La Baume Le Blanc1
- Louis XII of France1
- Ludwig Rosenthal1
- Luigi Arrigoni1
- Luis Ordoñez1
- Mannheimer Hofbibliothek1
- Marcantonio Contarini1
- Marchese Linterno1
- Marie-François Duchesne de Beaumanoir1
- Martin Breslauer1
- Menno Hertzberger1
- Monastery of Benevívere1