Author
- Conte Gabuzzi1
- Continuator of Martin of Troppau1
- Convento de São Domingos de Benfica1
- Cornelius Nepos1
- Cosimo Bartoli1
- Council of Basel1
- Cyprian1
- Cyprián Karásek Lvovický1
- Cyril of Jerusalem1
- Daffyd ap Philip1
- Damasus I1
- Del Carretto1
- Denis Faucher1
- Diogenes Laërtius1
- Domenico Cavalca1
- Domingo de Ara1
- Dominican Order1
- Donato Acciaioli1
- Duchy of Milan1
- Durandellus1