Aida (or Aïda, Italian: [aˈiːda]) is a tragic opera in four acts by Giuseppe Verdi to an Italian libretto by Antonio Ghislanzoni. Set in the Old Kingdom of Egypt, it was commissioned by Cairo's Khedivial Opera House and had its première there on 24 December 1871, in a performance conducted by Giovanni Bottesini. Today the work holds a central place in the operatic canon, receiving performances every year around the world. At New York's Metropolitan Opera alone, Aida has been sung more than 1,100 times since 1886. Ghislanzoni's scheme follows a scenario often attributed to the French Egyptologist Auguste Mariette, but Verdi biographer Mary Jane Phillips-Matz argues that the source is actually Temistocle Solera.

Alzira is an opera in a prologue and two acts by Giuseppe Verdi to an Italian libretto by Salvatore Cammarano, based on the 1736 play Alzire, ou les Américains by Voltaire. The first performance was at the Teatro San Carlo, Naples, on 12 August 1845. The contemporary reviews were mixed, and the first run of the opera received only four further performances.

Aroldo (Italian pronunciation: [aˈrɔldo]) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on and adapted from their earlier 1850 collaboration, Stiffelio. The opera premiered in Rimini's Teatro Nuovo Comunale on 16 August 1857.

Attila is an opera in a prologue and three acts by Giuseppe Verdi to an Italian libretto by Temistocle Solera, based on the 1809 play Attila, König der Hunnen (Attila, King of the Huns) by Zacharias Werner. The opera received its first performance at La Fenice in Venice on 17 March 1846. Ezio's act 2 aria of heroic resolution "È gettata la mia sorte" (My lot is cast, I am prepared for any warfare) is a fine example of a characteristic Verdian genre, and it achieved fame in its own time with audiences in the context of the adoption of a liberal constitution by Ferdinand II. Other contemporary comment praised the work as suitable for the "political education of the people", while, in contrast, others criticised the opera as "Teutonic" in nature.

Don Carlos is an 1867 five-act grand opera composed by Giuseppe Verdi to a French-language libretto by Joseph Méry and Camille du Locle, based on the 1787 play Don Karlos, Infant von Spanien (Don Carlos, Infante of Spain) by Friedrich Schiller and several incidents from Eugène Cormon's 1846 play Philippe II, Roi d'Espagne. The opera is most often performed in Italian translation, usually under the title Don Carlo. The opera's story is based on conflicts in the life of Carlos, Prince of Asturias (1545–1568). Though he was betrothed to Elisabeth of Valois, part of the peace treaty ending the Italian War of 1551–59 between the Houses of Habsburg and Valois demanded that she be married instead to his father Philip II of Spain. It was commissioned and produced by the Théâtre Impérial de l'Opéra (Paris Opera) and given its premiere at the Salle Le Peletier on 11 March 1867. The first performance in Italian was given at Covent Garden in London in June 1867. The first performance in Italy was in Bologna in October 1867, also in Italian translation. After some revisions by Verdi, it was performed in Italian in Naples in November/December 1872. Verdi was also responsible for a short four-act "Milan version" in which the first act was removed and the ballet omitted (composed to a French text, but first performed in Milan in January 1884 in Italian translation) but also apparently approved a five-act "Modena version" in which the first act was restored but the ballet still omitted (performed in Modena in December 1886, also in Italian translation). Around 1970, substantial passages of music cut before the premiere were discovered in Paris archives, giving rise to at least one additional version that can be ascribed to Verdi: the version he prepared for the Paris Opera in 1866, before any cuts were made. No other Verdi opera exists in so many authentic versions. At its full length (including the ballet and the cuts made before the first performance), it contains close to four hours of music and is Verdi's longest opera.

Ernani is an operatic dramma lirico in four acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on the 1830 play Hernani by Victor Hugo. Verdi was commissioned by the Teatro La Fenice in Venice to write an opera, but finding the right subject took some time, and the composer worked with the inexperienced Piave in shaping first one and then another drama by Hugo into an acceptable libretto. As musicologist Roger Parker notes, the composer "intervened on several important points, insisting for example that the role of Ernani be sung by a tenor (rather than by a contralto as had originally been planned)". Ernani was first performed on 9 March 1844, and it was "immensely popular, and was revived countless times during its early years". It became Verdi's most popular opera until it was superseded by Il trovatore after 1853. In 1903, it became the first opera to be recorded completely.

Falstaff (Italian pronunciation: [ˈfalstaf]) is a comic opera in three acts by the Italian composer Giuseppe Verdi. The Italian-language libretto was adapted by Arrigo Boito from the play The Merry Wives of Windsor and scenes from Henry IV, Part 1 and Part 2, by William Shakespeare. The work premiered on 9 February 1893 at La Scala, Milan. Verdi wrote Falstaff, the last of his 26 operas, as he approached the age of 80. It was his second comedy, and his third work based on a Shakespeare play, following Macbeth and Otello. The plot revolves around the thwarted, sometimes farcical, efforts of the fat knight Sir John Falstaff to seduce two married women to gain access to their husbands' wealth. Verdi was concerned about working on a new opera at his advanced age, but he yearned to write a comic work and was pleased with Boito's draft libretto. It took the collaborators three years from mid-1889 to complete. Although the prospect of a new opera from Verdi aroused immense interest in Italy and around the world, Falstaff did not prove to be as popular as earlier works in the composer's canon. After the initial performances in Italy, other European countries and the US, the work was neglected until the conductor Arturo Toscanini insisted on its revival at La Scala and the Metropolitan Opera in New York from the late 1890s into the next century. Some felt that the piece suffered from a lack of the full-blooded melodies of the best of Verdi's previous operas, a view that Toscanini strongly opposed. Conductors of the generation after Toscanini who championed the work included Herbert von Karajan, Georg Solti and Leonard Bernstein. The work is now part of the standard operatic repertory. Verdi made numerous changes to the music after the first performance, and editors have found difficulty in agreeing on a definitive score. The work was first recorded in 1932 and has subsequently received many studio and live recordings. Singers closely associated with the title role have included Victor Maurel (the first Falstaff), Mariano Stabile, Giuseppe Valdengo, Tito Gobbi, Geraint Evans, Bryn Terfel and Ambrogio Maestri.

Giovanna d'Arco (Joan of Arc) is an operatic dramma lirico with a prologue and three acts by Giuseppe Verdi set to an Italian libretto by Temistocle Solera, who had prepared the libretti for Nabucco and I Lombardi. It is Verdi's seventh opera. The work partly reflects the story of Joan of Arc and appears to be loosely based on the 1801 play Die Jungfrau von Orleans by Friedrich von Schiller. Verdi wrote the music during the autumn and winter of 1844/45 and the opera had its first performance at Teatro alla Scala in Milan on 15 February 1845. This opera is not to be confused with Rossini's cantata of the same name, which was composed in 1832 for contralto and piano, and runs approximately 15 minutes.

I due Foscari (The Two Foscari) is an opera in three acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on the 1821 historical play, The Two Foscari by Lord Byron. After his success with Ernani, Verdi received a commission from Rome's Teatro Argentina and he went to work with Piave in considering two subjects, one of which eventually became this opera. I due Foscari was given its premiere performance in Rome on 3 November 1844 and was generally quite successful, although not on the scale of Ernani, which remained Verdi's most popular opera until Il trovatore in 1853.

I Lombardi alla Prima Crociata (The Lombards on the First Crusade) is an operatic dramma lirico in four acts by Giuseppe Verdi to an Italian libretto by Temistocle Solera, based on an epic poem by Tommaso Grossi, which was "very much a child of its age; a grand historical novel with a patriotic slant". Its first performance was given at the Teatro alla Scala in Milan on 11 February 1843. Verdi dedicated the score to Maria Luigia, the Habsburg Duchess of Parma, who died a few weeks after the premiere. In 1847, the opera was significantly revised to become Verdi's first grand opera for performances in France at the Salle Le Peletier of the Paris Opera under the title of Jérusalem.

I masnadieri (The Bandits or The Robbers) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Andrea Maffei, based on the play Die Räuber by Friedrich von Schiller. As Verdi became more successful in Italy, he began to receive offers from other opera houses outside the country. The London impresario Benjamin Lumley had presented Ernani in 1845 and, as a result of its success, commissioned an opera from the composer which became I masnadieri. It was given its first performance at Her Majesty's Theatre on 22 July 1847 with Verdi conducting the first two performances. While reasonably successful there and in Italy up to the mid-1860s, the opera disappeared for about ninety years until revived in 1951. It has been staged and filmed several times in the 21st century.

I vespri siciliani (Italian pronunciation: [i ˈvɛspri sitʃiˈljaːni]; "The Sicilian Vespers") is a five-act Italian opera originally written in French for the Paris Opéra by the Italian romantic composer Giuseppe Verdi and translated into Italian shortly after its premiere in June 1855. Under its original title, Les vêpres siciliennes, the libretto was prepared by Eugène Scribe and Charles Duveyrier from their work Le duc d'Albe, which was written in 1838 and offered to Halévy and Donizetti before Verdi agreed to set it to music in 1854. The story is loosely based on a historical event, the Sicilian Vespers of 1282, using material drawn from the medieval Sicilian tract Lu rebellamentu di Sichilia. After its June 1855 Paris premiere, an Italian libretto was quickly prepared using a new title because Verdi realized that it would have been impossible to place the story in Sicily. Based on Scribe's suggestions for changing the location, it became Portugal in 1640 while under Spanish control. This version was first performed at the Teatro Regio in Parma on 26 December 1855.

Il corsaro (The Corsair) is an opera in three acts by Giuseppe Verdi, from a libretto by Francesco Maria Piave, based on Lord Byron's 1814 poem The Corsair. The first performance was given at the Teatro Grande in Trieste on 25 October 1848.

Il trovatore ('The Troubadour') is an opera in four acts by Giuseppe Verdi to an Italian libretto largely written by Salvadore Cammarano, based on the Spanish play El trovador (1836) by Antonio García Gutiérrez. It was García Gutiérrez's most successful play, one which Verdi scholar Julian Budden describes as "a high flown, sprawling melodrama flamboyantly defiant of the Aristotelian unities, packed with all manner of fantastic and bizarre incident." The premiere took place at the Teatro Apollo in Rome on 19 January 1853, where it "began a victorious march throughout the operatic world", a success due to Verdi's work over the previous three years. It began with his January 1850 approach to Cammarano with the idea of Il trovatore. There followed, slowly and with interruptions, the preparation of the libretto, first by Cammarano until his death in mid-1852 and then with the young librettist Leone Emanuele Bardare, which gave the composer the opportunity to propose significant revisions, which were accomplished under his direction. These revisions are seen largely in the expansion of the role of Leonora. For Verdi, the three years were filled with musical activity; work on this opera did not proceed while the composer wrote and premiered Rigoletto in Venice in March 1851. His personal affairs also limited his professional work. In May 1851, an additional commission was offered by the Venice company after Rigoletto's success there. Another commission came from Paris while he was visiting that city from late 1851 to March 1852. Before the libretto for Il trovatore was completed, before it was scored, and before it premiered, Verdi had four operatic projects in various stages of development. Today, Il trovatore is performed frequently and is a staple of the standard operatic repertoire.

Jérusalem is a grand opera in four acts by Giuseppe Verdi. The libretto was to be an adaptation and partial translation of the composer's original 1843 Italian opera, I Lombardi alla prima crociata. It was the one opera which he regarded as the most suitable for being translated into French and, taking Eugène Scribe's advice, Verdi agreed that a French libretto was to be prepared by Alphonse Royer and Gustave Vaëz, who had written the libretto for Donizetti's most successful French opera, La favorite. The opera received its premiere performance at the Salle Le Peletier in Paris on 26 November 1847. The maiden production was designed by Paul Lormier (costumes), Charles Séchan, Jules Diéterle and Édouard Desplechin (sets of Act I, Act II, scene 1, Act III scene 1, and Act IV), and Charles-Antoine Cambon and Joseph Thierry (sets for Act II, scene 2 and Act III, scene 2).

La battaglia di Legnano (The Battle of Legnano) is an opera in four acts, with music by Giuseppe Verdi to an Italian-language libretto by Salvadore Cammarano. It was based on the play La Bataille de Toulouse by Joseph Méry, later the co-librettist of Don Carlos. Written as a commission from the Teatro Argentina in the "beleaguered republic" of Rome while the composer was still living in Paris, he traveled to Rome in late 1848 to prepare the opera for its first performance, which was given on 27 January 1849. Musicologist Roger Parker describes the première as "a clamorous success, with the entire final act encored" and the audience wild with enthusiasm. He goes to add that act 4 was encored at every performance of the run. However, we learn elsewhere that the opera failed in its 1850 production in Genoa. In later years Battaglia was given under different settings and different titles until Italian unification allowed for the opera to be presented as originally written. Verdi considered revising it in the 1850s, but never did.

La forza del destino (Italian pronunciation: [la ˈfɔrtsa del deˈstiːno]; The Power of Fate, often translated as The Force of Destiny) is an Italian opera by Giuseppe Verdi. The libretto was written by Francesco Maria Piave based on a Spanish drama, Don Álvaro o la fuerza del sino (1835), by Ángel de Saavedra, 3rd Duke of Rivas, with a scene adapted from Friedrich Schiller's Wallensteins Lager (Wallenstein's Camp). It was first performed in the Bolshoi Kamenny Theatre of Saint Petersburg, Russia, on 29 October 1862 O.S. (N.S. 10 November). La forza del destino is frequently performed, and there have been a number of complete recordings. In addition, the overture (to the revised version of the opera) is part of the standard repertoire for orchestras, often played as the opening piece at concerts.

La traviata (Italian: [la traviˈaːta, -aˈvjaː-]; The Fallen Woman) is an opera in three acts by Giuseppe Verdi set to an Italian libretto by Francesco Maria Piave. It is based on La Dame aux camélias (1852), a play by Alexandre Dumas fils, which he adapted from his own 1848 novel. The opera was originally titled Violetta, after the main character. It was first performed on 6 March 1853 at La Fenice opera house in Venice. Piave and Verdi wanted to follow Dumas in giving the opera a contemporary setting, but the authorities at La Fenice insisted that it be set in the past, "c. 1700". It was not until the 1880s that the composer's and librettist's original wishes were carried out and "realistic" productions were staged. La traviata has become immensely popular and is among the most frequently performed of all operas.

Luisa Miller is an opera in three acts by Giuseppe Verdi to an Italian libretto by Salvadore Cammarano, based on the play Kabale und Liebe (Intrigue and Love) by the German dramatist Friedrich von Schiller. Verdi's initial idea for a new opera – for which he had a contract going back over several years – was rejected by the Teatro San Carlo in Naples. He attempted to negotiate his way out of this obligation and, when that failed, Cammarano came up with the idea of adapting the Schiller play, with which Verdi was familiar. The process was set in motion, with Verdi still living and working on initial ideas from Paris, where he had been living for almost two years before moving back to his home town of Busseto in the summer of 1849. It was from there that he wrote the music and traveled to Naples for rehearsals. The first performance was given on 8 December 1849. This was Verdi's 15th opera (counting Jérusalem, the French translation and revision of I Lombardi alla prima crociata), and it is regarded as the beginning of the composer's "middle period".

Macbeth (Italian pronunciation: [ˈmakbet], also [makˈbɛt]) is an opera in four acts by Giuseppe Verdi, with an Italian libretto by Francesco Maria Piave and additions by Andrea Maffei, based on William Shakespeare's play of the same name. Written for the Teatro della Pergola in Florence, Macbeth was Verdi's tenth opera and premiered on 14 March 1847. It was the first Shakespeare play that Verdi adapted for the operatic stage. Almost twenty years later, Macbeth was revised and expanded into a French version and given in Paris on 21 April 1865. After the success of Attila in 1846, by which time the composer had become well established, Macbeth came before the great successes of 1851 to 1853 (Rigoletto, Il trovatore and La traviata) which propelled him into universal fame. As sources, Shakespeare's plays provided Verdi with lifelong inspiration: some, such as an adaption of King Lear (as Re Lear) were never realized, but he wrote his two final operas using Othello as the basis for Otello (1887) and The Merry Wives of Windsor as the basis for Falstaff (1893). The first version of Macbeth was completed during the time that Verdi described as his "galley years," which ranged over 16 years and saw the composer produce 22 operas. By the standards of the subject matter of almost all Italian operas produced during the first fifty years of the 19th century, Macbeth was highly unusual. The 1847 version was very successful, and it was presented widely. The 1865 revision, produced in a French translation and with several additions, was first given on 21 April. It was less successful, and the opera largely faded from public view until the mid-20th century revivals.

Nabucco (Italian pronunciation: [naˈbukko]; short for Nabucodonosor [naˌbukoˈdɔːnozor, -donoˈzɔr], i.e. "Nebuchadnezzar") is an Italian-language opera in four acts composed in 1841 by Giuseppe Verdi to an Italian libretto by Temistocle Solera. The libretto is based on the biblical books of 2 Kings, Jeremiah, Lamentations, and Daniel, and on the 1836 play by Auguste Anicet-Bourgeois and Francis Cornu. However, Antonio Cortese's ballet adaptation of the play (with its necessary simplifications), given at La Scala in 1836, was a more important source for Solera than the play itself. Under its original name of Nabucodonosor, the opera was first performed at La Scala in Milan on the 9th of March 1842. Nabucco is the opera that is considered to have permanently established Verdi's reputation as a composer. He commented that "this is the opera with which my artistic career really begins. And though I had many difficulties to fight against, it is certain that Nabucco was born under a lucky star." The opera follows the plight of the Jews as they are assaulted, conquered and subsequently exiled from their homeland by the Babylonian king Nabucco (Nebuchadnezzar II). The historical events are used as background for a romantic and political plot. The best-known number from the opera is the "Chorus of the Hebrew Slaves" ("Va, pensiero, sull'ali dorate" / "Fly, thought, on golden wings"), a chorus that is regularly given an encore in many opera houses when performed today.

Oberto, Conte di San Bonifacio is an opera in two acts by Giuseppe Verdi to an Italian libretto by Temistocle Solera, based on an existing libretto by Antonio Piazza probably called Rocester. It was Verdi's first opera, written over a period of four years, and was first performed at the Teatro alla Scala, Milan, on 17 November 1839. The La Scala production enjoyed "a fair success" and the theatre's impresario, Bartolomeo Merelli, commissioned two further operas from the young composer.

Otello (Italian pronunciation: [oˈtɛllo]) is an opera in four acts by Giuseppe Verdi to an Italian libretto by Arrigo Boito, based on Shakespeare's play Othello. It was Verdi's penultimate opera, first performed at the Teatro alla Scala, Milan, on 5 February 1887. The composer was reluctant to write anything new after the success of Aida in 1871, and he retreated into retirement. It took his Milan publisher Giulio Ricordi the next ten years, first to encourage the revision of Verdi's 1857 Simon Boccanegra by introducing Boito as librettist and then to begin the arduous process of persuading and cajoling Verdi to see Boito's completed libretto for Otello in July/August 1881. However, the process of writing the first drafts of the libretto and the years of their revision, with Verdi all along not promising anything, dragged on. It was not until 1884, five years after the first drafts of the libretto, that composition began, with most of the work finishing in late 1885. When it finally premiered in Milan on 5 February 1887, it proved to be a resounding success, and further stagings of Otello soon followed at leading theatres throughout Europe and America.

Rigoletto is an opera in three acts by Giuseppe Verdi. The Italian libretto was written by Francesco Maria Piave based on the 1832 play Le roi s'amuse by Victor Hugo. Despite serious initial problems with the Austrian censors who had control over northern Italian theatres at the time, the opera had a triumphant premiere at La Fenice in Venice on 11 March 1851. The work, Verdi's sixteenth in the genre, is widely considered to be the first of the operatic masterpieces of Verdi's middle-to-late career. Its tragic story revolves around the licentious Duke of Mantua, his hunch-backed court jester Rigoletto, and Rigoletto's daughter Gilda. The opera's original title, La maledizione (The Curse), refers to a curse placed on both the Duke and Rigoletto by the Count Monterone, whose daughter the Duke has seduced with Rigoletto's encouragement. The curse comes to fruition when Gilda falls in love with the Duke and sacrifices her life to save him from the assassin hired by her father.

Simon Boccanegra (Italian: [siˈmom ˌbokkaˈneːɡra]) is an opera with a prologue and three acts by Giuseppe Verdi to an Italian libretto by Francesco Maria Piave, based on the play Simón Bocanegra (1843) by Antonio García Gutiérrez. Simon Boccanegra was first performed at Teatro La Fenice in Venice on 12 March 1857. Given the complications of the original plot and the generally poor popular response – although the critical one was more encouraging – the opera dropped out of favour after 1866. Finally, 23 years later, Verdi's publisher persuaded the composer to revise the opera, with text changes to be prepared by Arrigo Boito, the librettist who aspired to work with the ageing composer on a project which eventually became a new opera, Otello, but to whom Verdi had not totally committed at that time. The revised version of Simon Boccanegra, with the now-famous Council Chamber scene, was first performed at La Scala in Milan on 24 March 1881. It is this version which is the one most frequently performed today.

Stiffelio is an opera in three acts by Giuseppe Verdi, from an Italian libretto by Francesco Maria Piave. The origin of this was the novel Le pasteur d’hommes, by Émile Souvestre, which was published in 1838. This was adapted into the French play Le pasteur, ou L'évangile et le foyer by Souvestre together with Eugène Bourgeois. (Its premiere was on 10 February 1849 at the Théâtre de la Porte Saint-Martin in Paris.) That play was in turn translated into Italian by Gaetano Vestri as Stifellius; this formed the basis of Piave's libretto. Verdi's experience in Naples for Luisa Miller had not been a good one and he returned home to Busseto to consider the subject for his next opera. The idea for Stiffelio came from his librettist and, entering into a contract with his publisher, Ricordi, he agreed to proceed, leaving the decision as to the location of the premiere to Ricordi. This became the Teatro Grande (now the Teatro Comunale Giuseppe Verdi) in Trieste and, in spite of difficulties with the censors which resulted in cuts and changes, the opera – Verdi's 16th – was first performed on 16 November 1850.

Un ballo in maschera ('A Masked Ball') is an 1859 opera in three acts by Giuseppe Verdi. The text, by Antonio Somma, was based on Eugène Scribe's libretto for Daniel Auber's 1833 five act opera, Gustave III, ou Le bal masqué. The plot concerns the assassination in 1792 of King Gustav III of Sweden who was shot, as the result of a political conspiracy, while attending a masked ball, dying of his wounds thirteen days later. It was to take over two years between the commission from Naples, planned for a production there, and its premiere performance at the Teatro Apollo in Rome on 17 February 1859. In becoming the Un ballo in maschera which we know today, Verdi's opera (and his libretto) underwent a significant series of transformations and title changes, caused by a combination of censorship regulations in both Naples and Rome, as well as by the political situation in France in January 1858. Based on the Scribe libretto and begun as Gustavo III set in Stockholm, it became Una vendetta in domino set in Stettin, and finally Un ballo in maschera set in Boston during the colonial era. It became one of the most frustrating experiences of Verdi's career. From the mid-20th century, it has become more common for the setting to revert to its original 18th-century Stockholm location. A re-creation of the original Gustavo III has been staged in Sweden.

Un giorno di regno, ossia Il finto Stanislao (A One-Day Reign, or The Pretend Stanislaus, but often translated into English as King for a Day) is an operatic melodramma giocoso in two acts by Giuseppe Verdi to an Italian libretto written in 1818 by Felice Romani. Originally written for the Bohemian composer Adalbert Gyrowetz the libretto was based on the play Le faux Stanislas written by the Frenchman Alexandre-Vincent Pineux Duval in 1808. Un giorno was given its premiere performance at the Teatro alla Scala, Milan on 5 September 1840. After the success of his first opera, Oberto in 1839, Verdi received a commission from La Scala impresario Merelli to write three more operas. Un giorno was first of the three, but he wrote the piece during a period when first his children and then his wife died and its failure in 1840 caused the young composer to almost abandon opera. It was not until he was enticed to write the music for the existing libretto of what became Nabucco that Verdi restarted his career.