Question: Which opera was first performed in 1807, Falstaff or La vestale?
Context: Prosper-Didier Deshayes (mid 18th century – 1815) was an opera composer and dancer who lived and worked in France.  In 1764 he was a balletmaster at the Comédie-Française.  By 1774 he had become an assistant ("adjoint") at the Paris Opéra.  His first opera "Le Faux serment ou La Matrone de Gonesse", a "comédie mêlée d'ariettes" in two acts, was first performed on 31 December 1785 at the Théâtre des Beaujolais in Paris and became a popular success.  He went on to have another 18 works performed at various venues in Paris, but only two, "La faut serment" and "Zélie, ou Le mari à deux femmes", a 3-act "drame" first performed at the Salle Louvois on 29 October 1791, were ever published as musical scores.  He also participated in the collaborative Revolutionary opera "Le congrès des rois", a 3-act "comédie mêlée d'ariettes", which combined music written by Deshayes and 11 other composers and was first performed by the Opéra-Comique at the Salle Favart on 26 February 1794.  He died in Paris. Falstaff (] ) is an opera in three acts by the Italian composer Giuseppe Verdi (18131901).  The libretto was adapted by Arrigo Boito from Shakespeare's "The Merry Wives of Windsor" and scenes from "Henry IV", parts "1" and "2".  The work premiered on 9 February 1893 at La Scala, Milan. La vestale ("The Vestal Virgin") is an opera composed by Gaspare Spontini to a French libretto by Étienne de Jouy.  It takes the form of a "tragédie lyrique" in three acts.  It was first performed on 15 December 1807 by the Académie Impériale de Musique (Paris Opera) at the Salle Montansier, and is regarded as Spontini's masterpiece.  The musical style shows the influence of Gluck and looks forwards to the works of Berlioz, Wagner and French Grand Opera. The Temple of Shadows (French:La vestale du Gange) is a 1927 French silent film directed by  André Hugon and starring Camille Bert, Max Tréjean and Georges Melchior. Francesco Dominici (1885–1968) was an Italian operatic tenor particularly admired for his acting in comedic roles.  He made his professional opera debut as Fernando in Donizetti's "La favorite" at the Teatro Donizetti in Bergamo in 1914.  He created the role of Prunier in the original 1917 production of Puccini's "La rondine" at the Grand Théâtre de Monte Carlo, a role which he performed at many other opera houses including the Teatro Comunale di Bologna.  Over the next several years he played mostly leading roles at the Teatro Costanzi in Rome including Rodolfo in Puccini's "La Bohème", Fenton in Verdi's "Falstaff", and the Ernesto in Donizetti's "Don Pasquale".  In the early 1920s he joined the roster at La Scala where he began playing more buffo roles than leading roles.  In 1921, he sang the role of doctor Cajus in Verdi's Falstaff at La Scala and in 1922 was Filipeto in the company's first production of Ermanno Wolf-Ferrari's "I quattro rusteghi".  In 1926 he created the role of Emperor Altoum in the original production of Puccini's "Turandot" at La Scala.  In 1929 he went on tour with La Scala to Germany.  Other roles that Dominici performed at La Scala include David in Wagner's "Die Meistersinger von Nürnberg", Monostatos in Mozart's "The Magic Flute", and the Neipperg in Umberto Giordano's "Madame Sans-Gêne".  In 1931 he moved to Cuba, where he taught music for many years.  Dominici died in Havana in 1968. Giuseppina Ronzi de Begnis (born Giuseppina Ronzi; Milan 11 January 1800 – died, Florence, 7 June 1853) was an Italian soprano opera singer famous for the roles written for her by the prominent composers of the 1820s and 1830s.  Her father, Gaspare, was a prominent ballet dancer and choreographer, and her mother, Antonia, a ballerina.  Her brothers Stanislao and Pollione were opera singers.  As a singer, she made her debut in Naples at the Teatro dei Fiorentini in 1814 in Giovanni Cordella's "L'Avaro", followed by important engagements in Bologna in 1816, also appearing in Genoa, Florence; in 1817 as Giulia "La Vestale", and in Bergamo.  She married Italian bass Giuseppe de Begnis (1793–1849) when she was only 16.  The marriage lasted only a few years and the two separated in 1825. Vincenzo Pucitta (or Puccitta) (17 February 1778 – 20 December 1861) was a nineteenth-century Italian composer.  Born in Civitavecchia, he wrote more than 20 operas during his career.  One of his works, "La Vestale", after its premiere in London (1810), was also sung in Lisbon (1816), Milan (1816) and Rio de Janeiro (1817).  He died in Milan. La Vestale (en.  "The Vestal") is a "grand ballet" in three acts and four scenes with choreography by Marius Petipa and music by Mikhail Ivanov.  The ballet was first presented by the Imperial Ballet on 17 February [O.S. 29 January] 1888 at the Imperial Mariinsky Theatre in St. Petersburg, Russia. This is a discography of Giuseppe Verdi's last opera, Falstaff.  It was first performed at La Scala, Milan, on 9 February 1893. Étienne Lainez (or Lainé, Laînez) (23 May 1753 – 15 September 1822) was a French operatic tenor, and leading figure at the Paris Opera for over thirty years.  In the course of his career there he created many tenor roles including Rodrigue in Sacchini's "Chimène", Énée in Piccinni's "Didon", Narcisse in Gluck's "Echo et Narcisse", and Licinius in Spontini's "La vestale".
Answer: La vestale