Former Owner
- Legoué1
- Leonardus Martinotius1
- Lepeletier de Rosanbo1
- Leslie, John (c. 1840), bookseller1
- Library of the Dominicans of Paris1
- Louis Bourguet1
- Louis César de La Baume Le Blanc1
- Lucien Graux1
- Lydia Thompson Morris1
- Mademoiselle de Malberghe1
- Marie-François Duchesne de Beaumanoir1
- Matteo Luigi Canonici1
- Morris H. Morgan1
- Paul Gottschalk1
- Percy Mordaunt Barnard1
- Petrus Jensenius1
- Petrus Leonardus1
- Petrus Martinotius1
- Petrus Ysermans1
- Phyllis Walter Goodhart Gordan1