- Austria1
- Austria--Vienna1
- Aveiro, Gabriel de Lencastre, Duque de, 1667-17451
- Ayyubids1
- Babur, Emperor of Hindustan, 1483-15301
- Bartolomeo, da Petroio, 1488?-15541
- Basilica di S. Marco Evangelista al Campidoglio (Rome, Italy)1
- Basmalah1
- Bassini, Antonio1
- Battle of Agincourt (Agincourt, France : 1415)1
- Battle of Covadonga (Covadonga, Spain : 718)1
- Battle of Pharsalus (Farsala, Greece : 48 B.C.)1
- Bayezid II, Sultan of the Turks, 1447 or 1448-15121
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, d. 1286? Lubb al-albāb1
- Baʻal Shem Ṭov, approximately 1700-17601
- Baṭāʼiḥī, Manṣūr ibn Mūsá, -12931
- Belarus--Vaŭkavysk1
- Belgium--Liège1
- Benavides family1
- Benedictine nuns1