Former Owner
- 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
- Markus Fugger1
- Mary W. T. Dickinson1
- Matthaeus Lupin1
- Matthew Simpson Parkhurst1
- Maximilian Henry of Bavaria1
- Melchior Daniel Neubronner1
- Michaeliskonvent1