Former Owner
- Katherine Petersen1
- Klaus Dieter Dahmen1
- Kulturhistorisches Museum Magdeburg1
- Lady Frances Bentinck1
- Lajos Graf Apponyi de Nagy-Appony1
- Latham family1
- Laurence William Hodson1
- Leonardo Bruni1
- Leonello d'Este, Marquis of Ferrara1
- Liechtenstein State Library1
- Little family1
- Llewelyn Lloyd-Mostyn, 3rd Baron Mostyn of Mostyn1
- Lorenzo Berdute1
- Louis César de La Baume Le Blanc1
- Louis Hercule Timoléon de Cossé-Brissac1
- Louis Jean Gaignat1
- Louis XII of France1
- Lucien Delamarre1
- Lucien Graux1
- Luis Escobet1