Who was born first, Pietro Mascagni or Giovanni Battista Pergolesi?
Giovanni Battista Pergolesi
Title: Pietro Mascagni
Passage: Pietro Antonio Stefano Mascagni (] ; 7 December 1863 – 2 August 1945) was an Italian composer most noted for his operas. His 1890 masterpiece "Cavalleria Rusticana" caused one of the greatest sensations in opera history and single-handedly ushered in the "Verismo" movement in Italian dramatic music.  While it was often held that Mascagni, like Leoncavallo, was a "one-opera man" who could never repeat his first success, "L'amico Fritz" and "Iris" have remained in the repertoire in Europe (especially Italy) since their premieres.  Mascagni said that at one point, "Iris" was performed in Italy more often than "Cavalleria" (cf. Stivender).
Title: Giovanni Battista Pergolesi
Passage: Giovanni Battista Draghi (] ; 4 January 1710 – 16 March 1736), best known as Pergolesi (] ) or Giovanni Battista Pergolesi, was an Italian composer, violinist and organist.
Title: La conversione e morte di San Guglielmo
Passage: La conversione e morte di San Guglielmo ("The Conversion and Death of Saint William") is a sacred musical drama ("dramma sacro") in three parts by the Italian composer Giovanni Battista Pergolesi.  The libretto, by Ignazio Mancini, is based on the life of Saint William of Aquitaine as recounted by Laurentius Surius.  It was Pergolesi's first operatic work, possibly written as a study exercise for his conservatory.  The work was premiered at the Monastery of Sant'Agnello Maggiore, Naples in the summer of 1731.
Pietro Mascagni Giovanni Battista Pergolesi