Former Owner
- Johann Michael Schiller1
- Johannes Wesbach1
- Johannes, de Sancto Nabore1
- John Boykett Jarman1
- John Carter1
- John Edgar Ker1
- John Frederick Lewis1
- John Hunt1
- John Lee1
- John Rolls, 1st Baron Llangattock1
- Katharinenkirche, Nuremberg1
- Katherine Somerset Wyttenbach Fenwick1
- Kenneth Hyde1
- Kloster Bredelar1
- Konrad von Maurer1
- Lathrop Colgate Harper1
- Leo S. Olschki Editore1
- Leonello d'Este, Marquis of Ferrara1
- Little family1
- London School of Jewish Studies1