Former Owner
- Markus Fugger1
- Mary W. T. Dickinson1
- Matthaeus Lupin1
- Matthew Simpson Parkhurst1
- Maximilian Henry of Bavaria1
- Medingen Abbey1
- Melchior Daniel Neubronner1
- Michaeliskonvent1
- Miriam Lutcher Stark1
- Moritz Joseph Johann von Dietrichstein1
- Morton Davis Mitchell1
- Nicolas Antoine Labbey de Billy1
- Nonnberg Abbey1
- Otto Haas1
- Paland, Irmengarde von1
- Paul Riant7
- Philadelphia Museum of Art1
- Phillip J. Pirages Fine Books & Manuscripts1
- Pierre Fraenkel1
- Pietro Girometti1