Nicola (Antonio) Porpora (August 17, 1686 - March 3, 1768) was an Italian composer of Baroque operas (see opera seria) and teacher of singing, whose most famous singing student was the castrato Farinelli. Porpora was born in Naples. He graduated from the music conservatory Poveri di Gesù Cristo of his native city, where the civic opera scene was dominated by Alessandro Scarlatti.
Porpora's first opera, Agrippina, was successfully performed at the Neapolitan court in 1708. His second, Berenice, was performed at Rome. In a long career, he followed these up by many further operas, supported as maestro di cappella in the households of aristocratic patrons, such as the commander of military forces at Naples, the prince of Hesse-Darmstadt, or of the Portuguese ambassador at Rome, for composing operas alone did not yet make a viable career. However, his enduring fame rests chiefly upon his unequalled power of teaching singing. At the Neapolitan Conservatorio di Sant'Onofrio and with the Poveri di Gesù Cristo he trained Farinelli, Caffarelli, Salimbeni, and other celebrated vocalists, during the period 1715-1721. In 1720 and 1721 he wrote two serenades to librettos by a gifted young poet, Metastasio, the beginning of a long, though interrupted, collaboration. In 1722 his operatic successes encouraged him to lay down his conservatory commitments. (Hide extended text)...(Read all) Source : Wikipedia