Name
- Cienfuegos, Alvarez, Cardinal1
- Colon de Portugal, Pedro Manuel, 7th Duque de Veragua, Admiral of the Indies1
- Cornejo, Felix1
- Diaz, Alfonso Matteo, correspondent of Cardinal Filippo Gualterio, fl 17131
- Fernandez de Campo Angulo y Velasco, Pedro Cayetano, Marquis de Mejorada y de la Brená1
- Firrao, Giuseppe, Catholic cardinal, 1670-17441
- Fitz James, James Francis, Duke of Berwick, Duc de Liria y Xerica, army officer and ambassador, 1696-17381
- Forstall, C- H-1
- Forstall, Marcos1
- Gambarte, Juan Francisco, Secretary to the Marquis de los Balbases, fl 17171
- Garcia, Giuseppe, clergyman and correspondent of Cardinal Filippo Gualterio, fl 17211
- Garoña, Diego, correspondent of Cardinal Filippo Gualterio, fl 17231
- Giudice, Antonio, Duke of Giovenazzo, courtier and diplomat, 1657-17331
- Giudice, Domenico, Prince of Cellamare1
- Gonzaga, Francesco, Prince of Castiglione and Duke of Solferino, landowner, 1648-17231
- Gonzaga, Isabella Zacharia, née Ponce de León y Lancaster, wife of Francesco Gonzaga, Duke of Solferino, fl 1711-17221
- Guerra, Michaele Francisco, correspondent of Cardinal Filippo Gualterio, fl 17241
- Guiller, -, Chevalier, correspondent of Cardinal Filippo Gualterio, fl 17201
- Gutierrez, Leonardo, correspondent of Cardinal Filippo Gualterio, fl 17161
- Joachim de Jesus Maria1