- Aubertus, de Galardone1
- Aubigné, Agrippa d', 1552-16301
- Auction copies6
- Auctions1
- Audiore, Antonio1
- Augsburg Confession1
- Augustine, of Hippo, Saint, 354-43015
- Augustinians13
- Augustus, Emperor of Rome, 63 B.C.-14 A.D.1
- Aurangzeb, Emperor of Hindustan, 1618-17071
- Aurispa, Giovanni, approximately 1376-14591
- Austria129
- Austria--Kitzbühel1
- Austria--Lambach (Upper Austria)1
- Austria--Lower Austria1
- Austria--Vienna3
- Austrian94
- Authority--Religious aspects2
- Authority--Religious aspects--Islam1
- Authors, Arab1