High Quality Content by WIKIPEDIA articles! Nabucco (short for Nabucodonosor, English Nebuchadnezzar) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Temistocle Solera, based on the Biblical story and the 1836 play by Auguste Anicet-Bourgeois and Francis Cornue. It is Verdi’s third opera and the one which is considered to have permanently established his reputation as a composer.