Former Owner
- A.G.T1
- Abbaye de Dommartin1
- Abbaye de Saint-Alyre1
- Abbaye de Saint-Martin de Tournai1
- Abbazia dell'Acquafredda1
- Abbazia di San Domenico1
- Abbey of Saint-Germain-des-Prés1
- Abbey of Santa Giustina1
- Abbey of St. Vaast1
- Abbot von Heselwang1
- Abbé [Dourout]1
- Abraham Bracebridge1
- Abraham Cohen1
- Abraham I. Katsh1
- Abū al-Ḥasan Dallāl1
- Achille Genty1
- Achille Kühnholtz-Lordat1
- Acquired before February 1992 and probably in library for many decades.1
- Ada E. Moorhead Thomas1
- Adelbert Brownlow-Cust, 3rd Earl Brownlow1