- Amadori, Francesco3
- Arabic language--Syntax3
- Arrigucci family3
- Artillery3
- Astronomy--Tables3
- Augustine, of Hippo, Saint, 354-4303
- Bible. Gospels3
- Calendars3
- Catholic Church. Archdiocese of Cologne (Germany)3
- Christian heresies3
- Christian martyrs3
- Companions of the Prophet Muhammad3
- Concini, Giovanbattista3
- Coptic language3
- Cosimo I, Grand-Duke of Tuscany, 1519-15743
- Counter-Reformation3
- Criticism, Textual3
- De' Medici, Luigi, principe di Ottaviano, 1759-18303
- Deadly sins3
- Death--Religious aspects--Catholic Church3