Nebbia, Cesare a reputable Italian painter, whose works were mostly of a religious character, was born at Orvieto about 1536. He studied under Girolamo Muziano, whose style he adopted, and assisted him in the important works he executed for Gregory XIII in the Vatican and the Capella Gregoriana.
Assisted by Gio Guerra da Modena. Nebbia superintended the works projected by Sixtus V, intrusting the completion of his designs to the younger painters. They were extensively employed during the five years' reign of that pontiff in the chapel of S. Maria Maggiore, the library of the Vatican, the Scala Santa, and the Lateran and Quirinal palaces. Nebbia was much inferior to Muziano in dignity and grandeur, but possessed a fertile invention and great facility of execution. Lanzi says there are some beautiful pictures by him finely colored, as the Eppiphany, quite in Muziano's style, in the church of S. Francesco at Viterbo. Among his principal works at Rome, Baglioni mentions the Coronation of the Virgin in S. Maria de' Monti, and the Resurrection in S. Giacomo degli Spagnuoli. He died at Rome in 1614.