Ernani a dramma lirico (lyric drama) in Italian in four parts : premiere, Teatro la Fenice, Venice, March 9, 1844 - Fisher, Burton D.; Piave, Francesco Maria, 1810-1876; Hugo, Victor, 1802-1885; Verdi, Giuseppe, 1813-1901 (Opera Journeys Pub, 2011)
"Music by Giuseppe Verdi ; libretto by Francesco Maria Piave, after Hernani (1830), a play by Victor Hugo."