Former Owner
- Johann David Baier1
- Johann Egolph1
- Johannes Wigg1
- Johannes zu Reitheim1
- John Anderson1
- John Frederick Lewis3
- John Henry Ellis1
- John Henry Nash1
- John Hinsdale Scheide1
- Joseph Anton Koch1
- Joseph Ernst Koch-Sternfeld1
- Joseph Franz Gross1
- Kartause Erfurt1
- Katharinenkirche, Nuremberg2
- Konrad von Maurer2
- Leopold Gruber2
- Liechtenstein State Library1
- Maggs Bros Ltd2
- Marion Lawrence1
- Mark Augspürger1