Earls, Counts | Titles by Rank
- Counts of Carpine
- Counts of Carpio
- Counts of Carreira
- Counts of Carrion
- Counts of Cartago
- Counts of Cartaojal
- Counts of Cartaxo
- Counts of Cartayna
- Counts of Cartosio
- Counts of Carvalhais
- Counts of Carvalhal
- Counts of Carvalhido
- Counts of Casa Alegre
- Counts of Casa Angulo
- Counts of Casa Ayala
- Counts of Casa Brunet
- Counts of Casa Dávalos
- Counts of Casa Eguía
- Counts of Casa Fuerte
- Counts of Casa Galindo
- Counts of Casa Henestrosa
- Counts of Casa Loja
- Counts of Casa Miranda
- Counts of Casa Montalvo
- Counts of Casa Palma
- Counts of Casa Real de la Moneda
- Counts of Casa Rul
- Counts of Casa Saavedra
- Counts of Casa Trejo
- Counts of Casa Valencia
- Counts of Casa-Tagle
- Counts of Casal
- Counts of Casal Ribeiro
- Counts of Casamassima
- Counts of Casares
- Counts of Casarrubios del Monte
- Counts of Casasola
- Counts of Casasola del Campo
- Counts of Cascais
- Counts of Caserta
- Counts of Casillas de Velasco
- Counts of Cassano
- Counts of Cassis-Faraone
- Counts of Castañeda
- Counts of Castanheira
- Counts of Casteja
- Counts of Castel Blanco
- Counts of Castel d' Agogna
- Counts of Castel di Piero
- Counts of Castel Lambro