Ruggero Leoncavallo (Naples, April 23, 1857 - Montecatini Terme, August 9, 1919) was an Italian composer, author of operas and operettas.
Ruggero Leoncavallo was one of the most important exponents of verist melodrama: he had, especially in the Pagliacci , a strong dramatic sense and generous melodic inspiration, of immediate effectiveness; however, despite having a more solid cultural basis than other realists (he had a degree in literature, which allowed him to write the librettos of some of his works himself), he remained confined to the problem of the Italian "young school", amidst the influences of Bizet, Verdi's and distant echoes of Wagner. He tried to free himself from realism, for example in Bohème (1897), with a comic-sentimental vein, in Zingari (1912), with an exotic taste, in Goffredo Mameli (1916) and in Oedipus re(1920), but was no longer able to find that conciseness, that expressive vigor and that impetuous and incisive melodic vein that characterize his masterpiece, Pagliacci , quintessence of musical realism (the famous Prologue is an example )