Name
- Chumacero Sotomayor y Carrillo Laso de la Vega, Juan, Don Spanish Ambassador1
- Clement IX, Pope1
- Clement VII, Pope, 1478-15341
- Colombi, Girolamo, of Perugia1
- Commendone, Giovanni Francesco, Bishop of Zante, Cardinal 15631
- Conti, Carlo, Colonel in the papal army1
- Contreras, Esteban, army officer and diplomat, 1593-16711
- Conversini, Benedetto, Bishop of Jesi1
- Cordova, Gonzalo Fernandez de, Governor of Milan1
- Cornia, (Fulvio della), Duke of Castiglione del Lago1
- Cosimo II, Grand Duke of Tuscany1
- Council of Trent1
- Cueva, Alfonso della, Marquès de Bedmar, Spanish ambassador at Venice1
- Cusani, Celso1
- Deciani, Tiberio, called Deciano, jurist and scholar, 1509-15821
- Delfino, Zaccaria, cardinal, Bishop of Hvar and papal nuncio, 1527-15831
- Doges of Genoa1
- Doges of Venice1
- Doria, Giannettino, commander of the Genoese galleys, d 15451
- Duchy of Urbino, Italy1