Former Owner
- House of Rucellai1
- J. Martini1
- J. T. Payne1
- J. Techener1
- J. Thomson1
- Jean Theodore Royer1
- Jeanne Govro1
- Johan Meerman1
- Johannes Baptista Siccus1
- John Bolton1
- John James Lewis1
- John Rolls, 1st Baron Llangattock1
- John Thomas Beer1
- Joseph Barrois1
- Leo Olschki1
- Luigi Arrigoni1
- Luigi Cora1
- Lycée Louis-le-Grand1
- Marchese Linterno1
- Margaret Anna Hazard1