The most celebrated scholar of Muziano, was Cesare Nebbia of Orvieto. He presided over the works of Sixtus, entrusting the completion of his own designs to the younger painters. In this task he was assisted by Gio. Guerra da Modena, who suggested to him the subjects, and apportioned the work among the scholars. Both the one and the other of these artists, was endowed with a facility which was essential to the vast works on which they were employed in the five years reign of Sixtus, in the chapel of S. Maria Maggiore, in the library of the Vatican itself, in the Quirinal and Lateran palaces, and at the Scala Santa, and many other places. But in other respects, Muziano left his scholars far behind, as he was possessed of a great and inventive genius, while Nebbia was more remarkable for the mechanism of his art; particularly when he decorated walls. There are, however, some beautiful and well coloured pictures by him; among which may be mentioned the Epiphany, in the church of S. Francis at Viterbo, quite in Muziano's style. Baglione associates with Nebbia Giovanni Paolo della Torre, a gentleman of Rome, who was raised by Girolamo above the rank of a mere dilettante. Taja too, adds Giacomo Stella da Brescia, who, he observes, had degenerated in some degree from the style of his master. He was employed, nevertheless, both in the gallery of Gregory XIII., and in other places, not without commendation. It may be observed, that M. Bardon states him to have been a native of Lyons, long resident in Italy.