Barons | Titles by Rank
- Barons of Courville
- Barons of Cousan
- Barons of Crailsheim
- Barons of Cramer
- Barons of Cramm
- Barons of Crato
- Barons of Crecques
- Barons of Cressac de Soleuvre
- Barons of Cressia
- Barons of Crichingen-Pietingen
- Barons of Criechingen
- Barons of Criechingen-Pietingen
- Barons of Cristina
- Barons of Crombrugghe de Looringhe
- Barons of Cropalati
- Barons of Cropières
- Barons of Crousaz-Crétet
- Barons of Cruangi
- Barons of Cruïlles
- Barons of Cruz Alta
- Barons of Cruz Alta-I
- Barons of Cruzeiro
- Barons of Cugno
- Barons of Cunha Bueno
- Barons of Curton
- Barons of Curvelo
- Barons of Czettritz und Neuhaus
- Barons of d' Avoir
- Barons of Dagstuhl
- Barons of Dallwitz
- Barons of Dampierre
- Barons of Danckelman
- Barons of Dangu
- Barons of Danvers
- Barons of Darcy
- Barons of Dedem
- Barons of Degenfeld
- Barons of Dempó
- Barons of der Jeltsch
- Barons of Descalvado
- Barons of Descalvado
- Barons of Desterro
- Barons of Destri
- Barons of Deurne
- Barons of Diamantina
- Barons of Diamantino
- Barons of Diergardt
- Barons of Dietrichstein
- Barons of Dietrichstein-Nikolsburg
- Barons of Dincklage