Former Owner
- Lutheran Theological Seminary at Philadelphia1
- Lycée Louis-le-Grand1
- Lyon Cathedral1
- Léon Gruel1
- M. De La Tour1
- M. Haimmiller1
- M. Louise Stowell1
- Madeleine Cosman1
- Madyan Qusuni1
- Madyājñika Devakṛṣṇa1
- Maffeo Pinelli1
- Maheśa1
- Maksymilian Mielzynski1
- Malachia Ormanian1
- Malvezzi de' Medici1
- Mannheimer Hofbibliothek1
- Manoel S. Pinto1
- Manuel Fernández del Castillo1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Marcantonio Contarini1