Name
- Colonna, Federico, Cardinal1
- Colonna, Maria, wife of Lorenzo Onofrio, Duke of Pagliano, Constable of Naples1
- Corsi, Domenico Maria, Cardinal1
- Crescentio, Alessandro, Cardinal1
- Croy, Marie Joséphine, wife of Ferdinand de Croy, Duc d'Havré et de Croy1
- Dear, John, attorney and correspondent of John Caryll, fl 17391
- Denhoff, Jan Kazimierz, cardinal and bishop of Cesena, 1649-16971
- Dickens, G, correspondent of John Caryll, fl 17391
- Dilke, Charles Wentworth, 2nd Baronet, writer and politician, 1843-19111
- Dormer, John, 7th Baron Dormer, landowner, 1691-17851
- Drouane, Gertrude Elizabet, of Turin, nun, fl 16881
- Durazzo, Marcello, cardinal, papal nuncio and Archbishop of Chalcedonia, 1633-17101
- Elyton, F, correspondent of John Carroll, fl 17351
- Englefield, Henry, 6th Baronet, landowner; of Wotton Basset, 1715-17801
- Ernest Augustus, Duke of Brunswick-Lüneburg, 1629-16981
- Este, Carlo Philiberto, Marchese di Borgomanero1
- Este, Cesare Ignazio, Marchese di Montecchio1
- Este, Luigi, Marchese di Scandiano1
- Este, Maria Theresa, wife of Sigismondo Francesco, Marchese di San Martino1
- Este, Sigismondo Francesco, Marchese di San Martino1