Former Owner
- Raymond Berriot2
- Robert Brodhead Honeyman2
- Rushton Mather Dorman2
- Wilfrid Voynich2
- Abbaye de Saint-Sulpice1
- Abbey of Saint-Germain-des-Prés1
- Abbey of St. Vaast1
- Admont Abbey1
- Alexander Hamilton, 10th Duke of Hamilton1
- Alexandre de Keller1
- Alison Johnstone1
- Amelia Daubeney1
- André de Rineck1
- Anne Claude Philippe, Comte de Caylus1
- Anthelme-Michel-Laurent de Migieu, marquis de Savigny1
- Antiquarian Books of Boston1
- Antoine Joseph Rérolle1
- Antoine de Court1
- Antonio Cánovas del Castillo1
- Arnold Jansen op de Haar1