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While Monteverdi's own impressions of the work are unknown, the duke realised the potential of this new art form and sought to gain prestige from the patronage of it. Since Monteverdi served as the court composer for the Gonzaga family from 1590 to 1612, he likely joined Duke Vincenzo Gonzaga in Florence for the 6 October 1600 premiere of Euridice. The first known work to be regarded as an opera in the modern sense is Dafne (1598) by Jacopo Peri, and his Euridice (1600) is the earliest surviving one. The opera genre emerged during Monteverdi's earlier career, first as courtly entertainment trying to revive Greek theatre. The libretto has survived for some of these lost operas. Seven other opera projects are known four were completed and performed during Monteverdi's lifetime, while he abandoned another three at some point. Of these, both the music and libretto for three are extant: L'Orfeo (1607), Il ritorno d'Ulisse in patria (1640) and L'incoronazione di Poppea (1643). The Italian composer Claudio Monteverdi (1567–1643) wrote several works for the stage between 16, including ten in the then-emerging opera genre. The Ducal Palace in Mantua, where L'Orfeo was premiered in 1607
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