- Avalos, Costanza d', Marquesa del Vasto1
- Avicenna, 980-10371
- Bacon, Nathaniel, 1547-16221
- Baers, Johannes, d. 16531
- Balzani, Guglielmo1
- Barbaro, Francesco, 1390-14541
- Barberini, Raffaello, 1532-15821
- Bartholomaeus, Anglicus, active 13th century1
- Bartholomaeus, de Chaimis1
- Bartholomew, of San Concordio, 1262-13472
- Bartolo, of Sassoferrato, 1313-13571
- Bartolomeo, da Ferrara1
- Barzizza, Gasparino, ca. 1360-14312
- Basil Saint, Bishop of Caesarea, approximately 329-3791
- Basil, Saint, Bishop of Caesarea, approximately 329-3792
- Baudouin d'Avesnes1
- Beccadelli, Antonio, 1394-14713
- Bede, the Venerable, Saint, 635-7351
- Bede, the Venerable, Saint, 673-7359
- Bembo, Pietro, 1470-15471
