Former Owner
- Louis-Jean-Nicolas Monmerqué1
- Ludovico Settala1
- Ludwig Rosenthal1
- Luigi Serra di Cassano1
- Luis Escobet1
- Lycée Louis-le-Grand1
- Madeleine Cosman1
- Madyan Qusuni1
- Malvezzi de' Medici1
- Manoel Pereira da Sylva1
- Manoel S. Pinto1
- Manuel John Johnson1
- Marcianus F. Rossi1
- Mario Pedro Arata1
- Mark Augspürger1
- Mark Lansburgh1
- Markus Fugger1
- Marquis of Astorga1
- Marsden J. Perry1
- Martin Picker1