Former Owner
- Louis XIV of France1
- Louis de Gruuthuse1
- Lucien Graux1
- Luigi Cora1
- Luini, Pacifico (Franciscan priest), active 19th century1
- M. De La Tour1
- Mademoiselle de Malberghe1
- Marc-René de Voyer d'Argenson1
- Marchese Porri-Carcani1
- Margaret Le Seigneur1
- Marguerite of Lorraine1
- Marie Thomas1
- Mario Maffei1
- Marion Lawrence1
- Martin Breslauer1
- Mary Stanley, Countess of Derby1
- Mary, Queen of Scots1
- Mathias Schurer1
- Matthew Bloxam1
- Matthew Donadski1