Former Owner
- Alberto Govi1
- Alexander Beresford Hope1
- Alphonse Labitte1
- Alvise Bochini1
- Anchin Abbey1
- Andrea S.1
- Andrea Tessier1
- André de Rineck1
- Antoine Duprat1
- Antonio Medin1
- Arthur M. Ellis1
- Baldassarre Boncompagni1
- Beatrice de Fouar1
- Beauvais Cathedral1
- Benetto Spinelli1
- Biblioteca Trivulziana1
- Branners Bibliofile Antikvariat1
- Breslauer and Meyer1
- Brian Douglas Stilwell1
- Brick Row Book Shop1