Former Owner
- Louis XII of France1
- Luigi Arrigoni1
- Luigi Cora1
- Maggs Bros Ltd2
- Mannheimer Hofbibliothek1
- Marcantonio Contarini1
- Marchese Linterno1
- Marchese Porri-Carcani1
- Matteo Luigi Canonici3
- Mercantile Library Company1
- Oliver Henry Perkins1
- Phyllis Walter Goodhart Gordan9
- Pietro1
- Raphael de Mediolano1
- Richard Heber1
- Robert Hoe III1
- Samuel Whitaker Pennypacker1
- Simon Gratz1
- Susan B. Minns1
- Sydney Cockerell1