Question: What is the nationality of the composer who wrote Mes amis, écoutez l'histoire from the opera Le postillon de Lonjumeau?

Context articles: Mes amis, écoutez l'histoire
Léon Lévy Brunswick
Rondino for Piano Quintet (Czerny)
Le postillon de Lonjumeau
Bernhard Bötel
Marie-Christine Koundja
Adolphe Adam
Geneviève-Aimé-Zoë Prévost
Venez tous mes amis!
Boyfriends and Girlfriends

"Mes amis, écoutez l'histoire", is a tenor aria in Adolphe Adam's 1836 opera "Le postillon de Lonjumeau".
 The D in the final verse is the highest commonly sung note for tenors in opera.
 Donizetti wrote an E♭ for Edgardo in the first act of his opera "Lucia di Lammermoor", though it is very seldom sung.
 Higher notes are occasionally sung in interpolations and ornaments in other bel canto operas, and exceptionally the written F at the end of "Credeasi, misera" in Bellini's "I puritani".
Léon Lévy Brunswick (20 April 1805, in Paris – 29 July 1859, in Le Havre) was a French playwright.
 He started as a journalist before turning to theater.
 He is the author of many comedies with Jean-François Bayard, Louis-Émile Vanderburch, and Arthur de Beauplan such as "Boccaccio, or the Prince of Palmero" by Franz von Suppé.
 But it is with Adolphe de Leuven that he is known for his greatest successes, notably booklets of comic operas by Adolphe Adam ("Le Brasseur de Preston," "Le Postillon de Lonjumeau," "Le Roi d'Yvetot").
 He has also published under the pseudonym of Leo Lhérie.
Carl Czerny's Rondino on a Theme of Auber for Piano Quintet, Op. 127 (French: "Rondino sur un thême favori de l’opera Le maçon d’Auber.
 Pour le pianoforte avec accomp.
 de deux violons, alto et violoncelle, oeuv.
 127" ) was published by Diabelli around 1826.
 Scored for a standard piano quintet (Piano, 2 Violins, Viola, Cello), the composition is what the composer would have dubbed a "brilliant" piece, intended to show off the skills of the piano soloist in a concert setting.
The opera has become the most successful of Adam's works, and the one by which (apart from his ballet "Giselle" and his Christmas carol "Cantique de Noël") he is best known outside his native France.
 The opera is known for the difficult aria 'Mes amis, écoutez l'histoire' which has been called a test for tenors because of the demanding high D, or D5, at the end of the aria.
Bernhard Bötel (1883–1953) was a German operatic tenor and actor who had an active career in Germany and Austria during the first half of the 20th century.
 He made recordings for several record labels during the early years of the recording industry, including His Master's Voice, Odeon Records, Polydor Records, Tri-Ergon, and Vox Records.
 On the stage he sang a variety of roles in operas and operettas from leading parts to comprimario roles.
 His stage repertoire included Belmonte in Wolfgang Amadeus Mozart's "Die Entführung aus dem Serail", Chapelou in Adolphe Adam's "Le postillon de Lonjumeau", Count Almaviva in Gioachino Rossini's "The Barber of Seville", Daniel in Franz Lehár's "The Merry Widow", the Duke of Mantua in Giuseppe Verdi's "Rigoletto", Gabriel von Eisenstein in Johann Strauss II's "Die Fledermaus", Indigo in Strauss' "Indigo und die vierzig Räuber", Jeník in Bedřich Smetana's "The Bartered Bride", Paolino in Domenico Cimarosa's "Il matrimonio segreto", Pâris in Jacques Offenbach's "La belle Hélène", Pietro in Franz von Suppé's "Boccaccio", and Wilhelm Meister in Ambroise Thomas' "Mignon".
Marie-Christine Koundja (born 30 March 1957) is a Chadian writer and diplomat, who has worked in various departments, ministries and embassies of her country.
 The first published female Chadian author, she has written two novels: "Al-Istifakh, ou, L'idylle de mes amis" (2001) and "Kam-Ndjaha, la dévoreuse" (2009).
Adolphe Charles Adam (] ; 24 July 1803 – 3 May 1856) was a French composer and music critic.
 A prolific composer of operas and ballets, he is best known today for his ballets "Giselle" (1841) and "Le corsaire" (1856, his last work), his operas "Le postillon de Lonjumeau" (1836), "Le toréador" (1849) and "Si j'étais roi" (1852)
Geneviève-Aimé-Zoë Prévost, born in Paris in 1802, died there in 1861, was a French operatic soprano.
 She created leading roles in some of the most notable French opéras comiques of the first half of the nineteenth century, including "Fra Diavolo" by Daniel Auber and "Le postillon de Lonjumeau" by Adolphe Adam.
Venez tous mes amis!
 is an compilation album of 17 songs by French singer of Jewish Algerian origin Enrico Macias in duo collaborations with other artists.
 It is in celebration of 50 years of a musical career in France and internationally.
Boyfriends and Girlfriends (French title: "L'Ami de mon amie", also known as "My Girlfriend's Boyfriend") is a 1987 comedy film directed by Éric Rohmer.
 The film stars Emmanuelle Chaulet, Sophie Renoir, Anne-Laure Meury.
 The theme is the proverb "Les amis de mes amis sont mes amis" ("My friend's friend is my friend").