Former Owner
- Henry Yates Thompson1
- Isabella d'Este1
- J. A. Shanley1
- Jean Joseph Sosthène de LaRoche Lacarelle1
- John F. Fleming1
- John Harrison-Broadley1
- John Henry Ellis1
- John Shelton Lawrence1
- Joseph Barrois1
- Julius Hess1
- Lucien Magne1
- Luigi Celotti1
- Luigi Serra di Cassano1
- Maffeo Pinelli1
- Manuel John Johnson1
- Martin Schøyen1
- Maurice Kann1
- Mayfair Rare Books and Manuscripts1
- Meschatin La Faye family1
- Mikhail Golitsyn1