Former Owner
- Alfred Chester Beatty6
- Alfred Trapnell1
- Alphonse Labitte4
- Ambroise Firmin Didot6
- Anchin Abbey1
- Andreas Justus Cennis1
- Andrew Fountaine1
- André Le Mercier1
- André de Rineck1
- Anna Maria Louisa Peachey1
- Anne Baker Lewis42
- Anne Churchill, Countess of Sunderland1
- Anne Claude Philippe, Comte de Caylus1
- Anne of Brittany1
- Antiquarian Books of Boston1
- Antoine Duprat1
- Antoine Lagnier1
- Antoine de Buz1
- Apostolo Zeno1
- Arthur Brölemann2