Former Owner
- John Shelton Lawrence1
- John Sotheby1
- John Thomas Beer1
- John Towneley1
- John Ward, 1st Earl of Dudley1
- John William Harshberger1
- Joseph Ernst Koch-Sternfeld1
- Juan Burgueño1
- Julian Burgueño1
- Julius de Cardelinis1
- Jérôme Pichon1
- Katherine Somerset Wyttenbach Fenwick1
- L. Paganthus1
- Lajos Graf Apponyi de Nagy-Appony1
- Lambach Abbey1
- Lancino Curti1
- Laurence William Hodson1
- Leonhardus Cuntius1
- Leopold Gruber1
- Lionardo di Paolo Adimari1