Former Owner
- Konrad von Maurer4
- Kulturhistorisches Museum Magdeburg1
- Kāle, Gālambhaṭṭa1
- Kāle, Janārdana1
- Kṛṣṇānanda Āgamavāgīśa Bhaṭṭācārya1
- L. C. Harper1
- L. Paganthus1
- Lady Frances Bentinck1
- Lady Margaret Ayloffe1
- Lajos Graf Apponyi de Nagy-Appony1
- Lambach Abbey2
- Lambertus Eerens1
- Lancino Curti1
- Latham family1
- Lathrop C. Harper, Inc.7
- Laurence Claiborne Witten II7
- Laurence Harman King-Harman1
- Laurence Hilliard1
- Laurence Vaux1
- Laurence William Hodson4