Former Owner
- Luis Fernández de Córdoba y Aragón1
- Luther Albertus Brewer1
- Lydia Thompson Morris1
- Lālajī Śarmaṇ1
- M. De La Tour1
- M. Louise Stowell1
- Madeleine Cosman1
- Madyan Qusuni1
- Madyājñika Devakṛṣṇa1
- Mahdī ibn Muṣṭafá al-Ḥusaynī1
- Maheśa1
- Malachia Ormanian1
- Malvezzi de' Medici1
- Manookjee Sorabjee Ashburner1
- Manuel Fernández del Castillo1
- Manūchihr Nukhastīn Āṣaf Qājār1
- Manṣūr, Abū al-Faz̤l ibn Ghiyāth al-Dīn1
- Maria Riddell1
- Marie Cleophe de Sollario1
- Marie de Albano1