- Council of Vienne1
- Councils and synods, Ecumenical1
- Court administration1
- Court records1
- Court rules1
- Courtesy books1
- Coutinho, Francisco de Sousa, 1597 or 1598-16601
- Credit1
- Creeds1
- Cressida (Fictitious character)1
- Croatia--Dalmatia1
- Croatia--Split1
- Croatia--Šibenik1
- Cronica general de España (Ocampo, Florián de)1
- Cruciger, Kaspar, 1504-15481
- Crypto-Jews1
- Cuenca, Alonso Gaytan de1
- Cuenca, Francisco Gaytan de1
- Cuenca, Juan Gaytan de1
- Cur Deus homo (Anselm, Saint, Archbishop of Canterbury)1