Name
- Caldani, Leopoldo Marc Antonio, Professor of Medicine at Padua1
- Calvi, Giovanni, Professor of Medicine at Pisa1
- Canonici, Matteo Luigi, Jesuit and bibliophile, 1727-18051
- Carozzi, Coriolano1
- Causan1
- Cerati, Gasparo, FRS1
- Cibo, Alderano, Cardinal 1645, Secretary of State 16761
- Claudia, Archduchess of Austria, wife of the Archduke Leopold1
- Clement VII, Pope, 1478-15341
- Cloche, Antonin, Master General of the Dominicans1
- Cocchi, Raimondo, Professor of Anatomy at Florence1
- Coen, Enrietta Treves1
- Coltellini, Lodovico1
- Comino, Giuseppe, Publisher at Padua1
- Conti di Campello, Solone de'1
- Corso, Lorenzo, of Rhoana1
- Cosmo I, Grand Duke of Tuscany1
- Cosmo II, Grand Duke of Tuscany1
- Costa, Giovanni, Professor of Latin and Greek at Padua1
- Costadoni, Giovanni Domenico, alias Don Anselmo1