Francesco Feo (1691 – 28 January 1761) was an Italian composer born and active mainly in Naples, where he studied at the Conservatorio di Santa Maria della Pietà alongside future composers Leonardo Leo and Niccolò Jommelli. His first opera, L’amor tirannico, appeared in 1713, and he achieved real success with the opera seria Siface, re di Numidia in 1723. Alongside opera, he composed extensively for the church and served as maestro at several Neapolitan conservatories, including the Conservatorio di S. Onofrio, where Jommelli was among his pupils.

As a teacher and composer, Feo was a central figure in the Neapolitan school that shaped 18th-century Italian opera and sacred music, and dramatic works such as his Dies irae setting “Juste Judex ultionis” continue to be performed by early-music specialists today. His influence passed directly to the next generation of Neapolitan composers through his teaching.

Sources:

• https://en.wikipedia.org/wiki/Francesco_Feo