Former Owner
- Juan Burgueño1
- Julian Burgueño1
- Jón Þorstensson1
- Katherine Somerset Wyttenbach Fenwick1
- Konrad von Maurer1
- Lady Frances Bentinck1
- Lajos Graf Apponyi de Nagy-Appony1
- Lambach Abbey1
- Laurence William Hodson1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- Lorenzo Berdute1
- Louis César de La Baume Le Blanc1
- Louis Hercule Timoléon de Cossé-Brissac1
- Lucien Gougy1
- Luini, Pacifico (Franciscan priest), active 19th century1
- Mannucci family1
- Marcianus F. Rossi1
- Mario Maffei1
- Mark Lansburgh1
- Mary Schell Collins1