He was born to Carlo Corneliani (or Corneliano), and was intended to become a jeweller. He trained under Sangiorgi at the Accademia Ambrosiana. In 1760, influenced by the paintings of Anton Rafael Mengs, he left for Parma and worked under Carlo Calani. He returned to Milan where he painted lunette frescoes in the Casa Candiani.
He also painted the lunettes over the altars to the side of the chorus in the church of San Sebastiano. He made portraits of the family in the walls of the house of Castiglioni. He painted the four evangelists for the church of San Gervasio in Bergamo.
He was a close friend of Andrea Appiani and is described as a man alien to intrigue and vanity, pious without ostentation, he lived retired but always ready to work on works of art and piety He died in Milan.
- Boni, Filippo de' (1852). Biografia degli artisti ovvero dizionario della vita e delle opere dei pittori, degli scultori, degli intagliatori, dei tipografi e dei musici di ogni nazione che fiorirono da'tempi più remoti sino á nostri giorni. Seconda Edizione.. Venice; Googlebooks: Presso Andrea Santini e Figlio. pp. page 247–248.
- Ticozzi, Stefano (1830). Dizionario degli architetti, scultori, pittori, intagliatori in rame ed in pietra, coniatori di medaglie, musaicisti, niellatori, intarsiatori d’ogni etá e d’ogni nazione (Volume 1). Gaetano Schiepatti; Digitized by Googlebooks, Jan 24, 2007. pp. page 363.