Name
- Cavalleroni, Girolamo, papal nuncio, governor, Cardinal and Archbishop of Aix, 1597-16851
- Colloredo, Fabio Leandro1
- Colon de Portugal, Pedro, 8th Duque de Veragua, Admiral of the Indies1
- Cordova y la Cerda, Hieronyma Maria, wife of Nicolas, Duke of Feria and Medina Celi1
- Cordova y la Cerda, Nicolas Maria Fernandez, Count of Priego, Duke of Feria and Medina Celi1
- Corradini, Pier Marcellino, Cardinal 17121
- Corsini, Neri Maria, Marquis, afterwards Cardinal1
- Coscia, Nicolò, Cardinal 17251
- Curli, Silvestro1
- Dandini, Anselmo, correspondent of Luigi Gualterio, fl 17301
- Discreti, Francesco, correspondent of Luigi Gualterio, fl 17281
- Doria, Giovanni Andrea, naval officer, 1539-16061
- Elci,, Ranieri, alias Ilcio; Cardinal, Prolegate of Arignon1
- Emesa, Archbishop of1
- Erizzo, Giacomo Maria, Bishop of Concordia, Italy, fl 1723-17601
- Ferniani, Francesco Ricardo, Governor of Orvieto and Bishop of Perugia, 1686-17621
- Ferrero, Carlo Vincenzo Maria, Cardinal, 1682-17421
- Fieschi, Lorenzo Maria, cardinal, 1642-17261
- Fieschi, Vittor Amadeo Luigi, Prince of Masserano, nobleman, 1687-17431
- Fini, Francesco Antonio, Catholic cardinal, 1669-17431