Barons | Titles by Rank
- Barons of Clémont
- Barons of Clère
- Barons of Clermont
- Barons of Clermont Lodève
- Barons of Clisson
- Barons of Cnobloch
- Barons of Cocais
- Barons of Cocentaina
- Barons of Coche de La Ferté
- Barons of Cochin
- Barons of Coester
- Barons of Coëtmen
- Barons of Colaço e Macnamara
- Barons of Combarjua
- Barons of Comorogi
- Barons of Conceição
- Barons of Conceição da Barra
- Barons of Conceição-b
- Barons of Condeixa
- Barons of Conflans-Sainte-Honorine
- Barons of Congonhas do Campo
- Barons of Contendas
- Barons of Conyers
- Barons of Corbeek-over-Loo
- Barons of Corbeke
- Barons of Cornaro
- Barons of Cornberg
- Barons of Coroatá
- Barons of Coromandel
- Barons of Correntes
- Barons of Corropoli
- Barons of Cortenbach
- Barons of Corticeira
- Barons of Corumbá
- Barons of Coruripe
- Barons of Corvo
- Barons of Cos de la Hitte
- Barons of Costa Noronha
- Barons of Costa Ricci
- Barons of Costa Veiga
- Barons of Costeado
- Barons of Costeira
- Barons of Cotegipe
- Barons of Cotinguiba
- Barons of Coubertin
- Barons of Courbeffy
- Barons of Courcel
- Barons of Courcy
- Barons of Courières
- Barons of Courseulles