Keywords
- Arrighi family1
- Arrigo, Simone d'1
- Artedo, Petrus de1
- Artisans--Taxation1
- Asceticism--Early church1
- Asia1
- Astrolabes1
- Astrology, Arab1
- Astrology, Roman1
- Astronomy, Greek1
- Atlases1
- Aubertus, de Galardone1
- Austria--Lambach (Upper Austria)1
- Authors, Latin1
- Azar, Menaḥem ben Natan1
- Baglioni, Niccolò1
- Baldini, Antonio1
- Baldo, Antonio di1
- Baldo, Vestro di1
- Balducci, Domenico1