Former Owner
- Joost Ritman1
- Joseph Barrois1
- Joseph Mayner1
- Joseph Pope1
- José Fernando Ramírez1
- Juan Burgueño1
- Juan de Gayferos de Eguiraum1
- Juan de Londono1
- Judith Lady Montefiore College1
- Julian Burgueño1
- Justin MacCarthy Reagh1
- Jón Þorstensson1
- Kang Youwei1
- Karl Wilhelm Hiersemann8
- Kloster Kuringen1
- Konrad von Maurer2
- Lady Frances Bentinck1
- Lambach Abbey1
- Laurent Campagne1
- Lawrence J. Schoenberg12