Former Owner
- Lucien Magne1
- Ludovico Settala1
- Ludwig Rosenthal1
- Luigi Serra di Cassano1
- Lycée Louis-le-Grand1
- Lydia Thompson Morris1
- Lyon Cathedral1
- Léon Gruel1
- M. Haimmiller1
- Maffeo Pinelli1
- Maksymilian Mielzynski1
- Malvezzi de' Medici1
- Mannheimer Hofbibliothek1
- Manuel John Johnson1
- Marcantonio Contarini1
- Marcantonio V Borghese1
- Marchese Porri-Carcani1
- Marco da Bologna1
- Margaret Le Seigneur1
- Margaret of Croy1