- Baptism of Jesus Christ1
- Baqī ibn Makhlad, 816 or 17-889 or 90. Musnad1
- Baraita of 32 rules1
- Barbara, Saint1
- Bardaʻī, Muḥammad ibn Muḥammad, -1520 or 1521. Ḥāshiyat al-Bardāʻī1
- Barducci, Filippo1
- Baroncelli, Francesco1
- Bartolo, of Sassoferrato, 1313-13571
- Basil, Saint, Bishop of Caesarea, approximately 329-3791
- Bateman family1
- Baths, Turkish1
- Batignano, Carlo Gasparie di1
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable Madre Geronima de San Estevan1
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable madre Feliciana de San Ioseph1
- Battle Abbey1
- Battle of Covadonga (Covadonga, Spain : 718)1
- Battle of Lepanto (Greece : 1571)1
- Bayezid II, Sultan of the Turks, 1447 or 1448-15121
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, -1286?1
- Bayḍāwī, ʻAbd Allāh ibn ʻUmar, -1286? Lubb al-albāb1