Former Owner
- Jeremiah Styles1
- Jeronimus Maelens1
- Johann Michael Schiller1
- John Boykett Jarman1
- John Butlar1
- John C. Jackson1
- John Morgan1
- John Rolls, 1st Baron Llangattock1
- John Ruskin1
- John West, 1st Earl De La Warr1
- John Wright1
- Joseph Barrois1
- Katherine Somerset Wyttenbach Fenwick1
- Kloster Rebdorf1
- Lambertus Eerens1
- Laurent Campagne1
- Legoué1
- Louis César de La Baume Le Blanc1
- Louis H. Silver1
- Luini, Pacifico (Franciscan priest), active 19th century1