Former Owner
- Lodovicus Saltariellus1
- Long Island Historical Society, Maine1
- Louis Bourguet1
- Louis Charles Karpinski1
- Louis II, Count of Flanders1
- Louis Thompson Rowe1
- Louis XIV of France1
- Louis d'Harcourt1
- Louis-Jean-Nicolas Monmerqué1
- Lucien Delamarre1
- Lucien Gougy1
- Lucien Magne1
- Ludovico Settala1
- Ludwig Rosenthal1
- Luigi Serra di Cassano1
- Luini, Pacifico (Franciscan priest), active 19th century1
- Lycée Louis-le-Grand1
- Lydia Thompson Morris1
- Lyon Cathedral1
- Léon Gruel1