Former Owner
- Anne Claude Philippe, Comte de Caylus1
- Anne Jesson1
- Anne of Brittany1
- Anthelme-Michel-Laurent de Migieu, marquis de Savigny1
- Antiquarian Books of Boston1
- Antoine Joseph Rérolle1
- Antoine Lagnier1
- Antoine de Court1
- Antonio Cánovas del Castillo1
- Arnold Jansen op de Haar1
- Arthur Brölemann1
- Arthur Haddaway1
- Athelstan Riley1
- Aulne Abbey1
- Austin, Jehan1
- B. Goussil1
- B.L. Riese1
- Bayeux Cathedral1
- Beauvais Cathedral3
- Beinecke Rare Book & Manuscript Library1