- 510-265 B.C.1
- 962-12681
- A (The letter)1
- Aachen family1
- Aachen, Hans von, 1552-16151
- Abbaye Saint-André (Villeneuve-lès-Avignon, France)1
- Abbaye aux Dames (Caen, France)1
- Abbaye de Corbie1
- Abbaye de Montier-en-Der (Montier-en-Der, France)1
- Abbazia di S. Maria di Porcilia (Padua, Italy)1
- Abbazia di Santa Giustina (Padua, Italy)1
- Abbazia di Santo Stefano (Pistoia, Italy)1
- Abbots1
- Abbots--Appointment, call, and election1
- Abridgments1
- Absolution1
- Academic theses1
- Accademia degli Humoristi (Rome, Italy)1
- Acciaioli, Antonio1
- Acciaioli, Francesco1