Former Owner
- John Lee1
- John Morgan1
- John Morley1
- John Peacock1
- John Ruskin1
- John Shirley1
- John Topham1
- John Trotter Brockett1
- John West, 1st Earl De La Warr1
- John Willis1
- John Wright1
- John de Vere, 12th Earl of Oxford1
- Joseph Barrois1
- Joseph François René de Kergariou1
- Joseph Jekyll1
- Jules Bonhomme1
- Kenneth Hyde1
- Kulturhistorisches Museum Magdeburg1
- Lady Margaret Ayloffe1
- Lambach Abbey1