- Convento di Santa Giulia (Lucca, Italy)1
- Convents2
- Copyists1
- Corbinelli, Bernardo1
- Corbinelli, Girolamo1
- Corbinelli, Pandolfo1
- Cornelio, Giovanni1
- Cornell University1
- Cornerpieces (Furniture)1
- Corpus juris civilis1
- Correspondence5
- Correspondence (Cyprian, Saint, Bishop of Carthage)1
- Corsini, Bartolomeo1
- Corsino, Pietro di1
- Cortesi, Girolamo1
- Cosimo I, Grand-Duke of Tuscany, 1519-15744
- Cosimo II, Grand Duke of Tuscany, 1590-16211
- Cosimo III, Grand-Duke of Tuscany, 1642-17231
- Cosmography1
- Cosmology1