Luca Antonio Predieri was an Italian composer and violinist. A member of a prominent family of musicians, Predieri was born in Bologna and was active there from 1704. In 1737 he moved to Vienna, eventually becoming Kapellmeister to the imperial Habsburg court in 1741, a post he held for ten years. In 1765 he returned to his native city where he died two years later at the age of 78. A prolific opera composer, he was also known for his sacred music and oratorios. Although his operas were largely forgotten by the end of his own lifetime and most of their scores lost, individual arias as well some of his sacred music are still performed and recorded.

Pietro Antonio Domenico Trapassi, better known by his pseudonym of Pietro Metastasio, was an Italian poet and librettist, considered the most important writer of opera seria libretti.