- Congregação di San João Evangelista (Portugal)1
- Conquest of Peru (Peru : 1522-1548)1
- Consolation1
- Conspiracy1
- Constellations1
- Constitutions1
- Construction industry1
- Contracts1
- Contro, Mochata di1
- Contucci, Jacopo1
- Convento de la Concepción (Granada, Spain)1
- Convento di S. Maria degli Angeli (Florence, Italy)1
- Convento di Santa Giulia (Lucca, Italy)1
- Cook family1
- Cook, John, -approximately 13681
- Cook, Margaret Hoskin, -approximately 13681
- Copper mines and mining1
- Coppetti, Coppetto1
- Coppetti, Coppo1
- Copyists1