Former Owner
- Johann Heinrich van Ess1
- Johann Michael Schiller1
- Johannes Lethe1
- John Butlar1
- John Camp Williams1
- John Edgar Ker1
- John Frederick Lewis1
- John Lee1
- John Thomas Beer1
- Joseph Barrois1
- Julius de Cardelinis1
- Lancino Curti1
- Laurence William Hodson1
- Leicester Harmsworth1
- Leopold Gruber1
- Lionardo di Paolo Adimari1
- Louis César de La Baume Le Blanc1
- Luigi Celotti1
- Malachia Ormanian1
- Mario Maffei1