Question: La sonnambula used themes from a Vincenzo Bellini opera that had a libretto by whom?

full_context: Document 1: Juliet: Juliet Capulet (Italian: "Giulietta Capuleti" ) is the female protagonist in William Shakespeare's romantic tragedy "Romeo and Juliet". Juliet is the only daughter of the patriarch of the House of Capulet and falls in love with Romeo, a member of the House of Montague (with which the Capulets have a blood feud). The story has a long history that precedes Shakespeare himself.
Document 2: Tybalt: Tybalt is the main antagonist in William Shakespeare's play "Romeo and Juliet". He is the son of Lady Capulet's brother, Juliet's short-tempered first cousin, and Romeo's rival. Tybalt shares the same name as the character Tibert/Tybalt the "Prince of Cats" in "Reynard the Fox", a point of mockery in the play. Mercutio repeatedly calls Tybalt "Prince of Cats" (perhaps referring not only to Reynard but to the Italian word cazzo as well). Luigi da Porto adapted the story as "Giulietta e Romeo" and included it in his "Historia novellamente ritrovata di due Nobili Amanti" published in 1530. Da Porto drew on "Pyramus and Thisbe" and Giovanni Boccaccio's "Decameron". He gave it much of its modern form, including the lovers' names, the rival families of Montecchi and Capuleti, and the location in Verona. He also introduces characters corresponding to Shakespeare's Mercutio, Tybalt, and Paris. Da Porto presents his tale as historically true and claims it took place in the days of Bartolomeo II della Scala (a century earlier than Salernitano). Montague and Capulet were actual 13th-century political factions, but the only connection between them is a mention in Dante's" Purgatorio" as an example of civil dissension.
Document 3: A Midsummer Night's Dream (ballet): A Midsummer Night's Dream is a two-act ballet choreographed by George Balanchine to Felix Mendelssohn's music to Shakespeare's play of the same name. In addition to the incidental music, Balanchine incorporated other Mendelssohn works into the ballet, including the Overtures to "Athalie", "Son and Stranger", and "The Fair Melusine", the "String Symphony No. 9 in C minor" and "The First Walpurgis Night". "A Midsummer Night's Dream", Balanchine's first completely original full-length ballet, premiered at New York City Ballet on 17 January 1962, with Edward Villella in the role of Oberon, Melissa Hayden in the role of Titania, and Arthur Mitchell in the role of Puck. The ballet employs a large children's corps de ballet. Act I tells Shakespeare's familiar story of lovers and fairies while Act II presents a strictly classical dance wedding celebration. The ballet dispenses with Shakespeare's play-within-a-play finale. "A Midsummer Night's Dream" opened The New York City Ballet's first season at the New York State Theater in April, 1964.
Document 4: La sonnambula (Balanchine): La sonnambula "(The Sleepwalker)" is a ballet by the co-founder and ballet master of New York City Ballet, George Balanchine, made to Vittorio Rieti's music using themes from the operas of Vincenzo Bellini including "La Sonnambula", "Norma", "I Puritani" and "I Capuleti e i Montecchi" (1830–35) and with costumes by Karinska. The premiere took place with the Ballet Russe de Monte Carlo on Wednesday, 27 February , at City Center of Music and Drama, New York; the City Ballet premiere was on 6 January 1965.
Document 5: Romeo and Juliet: Romeo and Juliet is a tragedy written by William Shakespeare early in his career about two young star-crossed lovers whose deaths ultimately reconcile their feuding families. It was among Shakespeare's most popular plays during his lifetime and along with "Hamlet", is one of his most frequently performed plays. Today, the title characters are regarded as archetypal young lovers.
Document 6: La sonnambula: La sonnambula ("The Sleepwalker") is an opera semiseria in two acts, with music in the "bel canto" tradition by Vincenzo Bellini set to an Italian libretto by Felice Romani, based on a scenario for a "ballet-pantomime" written by Eugène Scribe and choreographed by Jean-Pierre Aumer called "La somnambule, ou L'arrivée d'un nouveau seigneur". The ballet had premiered in Paris in September 1827 at the height of a fashion for stage works incorporating somnambulism.
Document 7: La somnambule, ou L'arrivée d'un nouveau seigneur: La somnambule is a ballet-pantomime composed by Ferdinand Hérold and premiered on 19 September 1827 at the Académie Royale de Musique. The scenario was by Eugène Scribe, and it was choreographed by Jean-Pierre Aumer. This ballet was produced in 1827 at the height of a fashion for stage works incorporating somnambulism. The work was quite popular in Paris and inspired many more works incorporating somnambulism, including Vincenzo Bellini's well-known Italian opera "La sonnambula".
Document 8: Swan Lake (Balanchine): Swan Lake is a one-act ballet made by New York City Ballet's co-founder and ballet master George Balanchine to Tschaikovsky's eponymous music (1875–56). The premiere took place Thursday, 20 November 1951 at the City Center of Music and Drama, New York.
Document 9: Rigoletto: Rigoletto (] ) is an opera in three acts by Giuseppe Verdi. The Italian libretto was written by Francesco Maria Piave based on the 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.
Document 10: Walpurgisnacht Ballet: Walpurgisnacht Ballet is a ballet made by New York City Ballet's co-founder and founding choreographer George Balanchine for a 1975 production of Gounod's 1859 "Faust" at the Théâtre National de l'Opéra, including the additional ballet music from 1869. The New York City Ballet premiere was its first presentation as an independent work and took place on Thursday, 15 May 1980 at the New York State Theater, Lincoln Center. Balanchine had previously made dances for a production of "Faust" at the Opéra de Monte-Carlo, danced by Diaghilev's Ballets Russes, as well as in 1935 for the Metropolitan Opera and 1945 for the Opera Nacional, Mexico City.
Document 11: Monumentum pro Gesualdo: The ballet premiere was part of a special Salute to Italy, which also included the premiere of "Variations from Don Sebastian", called the "Donizetti Variations" since 1961, and performances of Balanchine's "La Sonnambula" and Lew Christensen's "Con Amore". It was first performed in conjunction with "Movements for Piano and Orchestra" in 1965, and this practice has been followed almost consistently since 1966, with the same leading female dancer in both in most performances. The ballet has three parts, each of just over two minutes duration. NYCB principal dancer Darci Kistler chose to include "Monumentum pro Gesualdo" in her farewell performance, Sunday, June 27.
Document 12: Rita (opera): In 1841, while Donizetti was in Paris waiting for the libretto to be completed for a commission by La Scala, he had a chance encounter with Gustave Vaëz, who had co-written the libretti for two of his earlier operas, "Lucie de Lammermoor" (the French version of "Lucia di Lammermoor") and "La favorite". He asked Vaëz if he could provide a libretto for a short opera to keep him busy while waiting for the La Scala project to advance. Vaëz quickly created "Deux hommes et une femme" ("Two Men and a Woman"), a comic piece in one act consisting of eight musical numbers connected by spoken dialogue. According to Vaëz, Donizetti completed the score in eight days. However, the Opéra-Comique rejected it and Donizetti then had the libretto translated into Italian for an intended performance at the Teatro del Fondo in Naples. Following the death of the Teatro del Fondo's impresario, Domenico Barbaja, the Naples performance fell through. The score, still unperformed, was found in Donizetti's effects when he died in 1848.
Document 13: La sonnambula (disambiguation): La sonnambula is an 1831 opera by Vincenzo Bellini with an Italian libretto by Felice Romani, based on a scenario by Eugène Scribe
Document 14: Lucia di Lammermoor: Lucia di Lammermoor is a "dramma tragico" (tragic opera) in three acts by Gaetano Donizetti. Salvadore Cammarano wrote the Italian-language libretto loosely based upon Sir Walter Scott's historical novel "The Bride of Lammermoor".
Document 15: I Capuleti e i Montecchi: I Capuleti e i Montecchi ("The Capulets and the Montagues") is an Italian opera ("Tragedia lirica") in two acts by Vincenzo Bellini. The libretto by Felice Romani was a reworking of the story of "Romeo and Juliet" for an opera by Nicola Vaccai called "Giulietta e Romeo" and based on the play of the same name by Luigi Scevola written in 1818, thus an Italian source rather than taken directly from William Shakespeare.
ground_truth: Felice Romani