Question: When was the composer who wrote the music for Euryanthe born? 

Context articles: Bob Gilmore
Michelangelo Sosnowitz
Edmund Severn
Hermann Zilcher
Pauline Duchambge
Euryanthe
Étienne-Joseph Floquet
Franz Schubert
Robert Gluck
John Serry

Bob Gilmore (6 June 1961 – 2 January 2015) was a musicologist, educator and keyboard player.
 Born in Larne, Northern Ireland, he spent his early years in Carrickfergus.
 He studied music at York University, England, and Queen's University, Belfast (PhD.
 1992), and, on a Fulbright Scholarship, at the University of California, San Diego.
 He was best known for his books on American music – "Harry Partch: A Biography" (Yale University Press, 1998) and "Ben Johnston: Maximum Clarity and Other Writings on Music" (University of Illinois Press, 2006), both of which were recipients of the Deems Taylor Award from ASCAP.
 He also wrote extensively on the American experimental tradition, microtonal music and spectral music, including the work of such figures as James Tenney, Horațiu Rădulescu, Claude Vivier, and Frank Denyer.
 He wrote on the work of younger Irish composers including Deirdre Gribbin, Donnacha Dennehy and Jennifer Walshe in the "Journal of Music in Ireland".
 He taught at Queens University, Belfast, Dartington College of Arts, Brunel University in London, and was a Research Fellow at the Orpheus Institute in Ghent.
 He was the founder, director and keyboard player of Trio Scordatura, an Amsterdam-based ensemble dedicated to the performance of microtonal music, and for the year 2014 was the Editor of "Tempo", a quarterly journal of new music.
 His biography of French-Canadian composer Claude Vivier was published by University of Rochester Press in June 2014.
Michelangelo Sosnowitz (born August 21, 1973) is an American music composer.
 His works include ballet, musical theater, electronic and popular music, as well as commercial, television and film.
 His feature film scores include A Novel Romance, winner Best Film at the NYC International Independent Film Festival, the Dan Fogler directorial debut Hysterical Psycho and the Deborah Kampmeier film Split.
 His original ballet 'Petrouchka' won Best Choreography at NYMF 2010.
 He wrote the opening theme music to The History Channel show Battles BC and original theme music for ENTV, Deadline Hollywood BlackTreeMedia and other PMC programming.
 He also wrote the score and theme music to the Colin Quinn Web series COP SHOW.
 Original Off-Broadway musicals include Crazy Head Space and Love in the MIddle Ages.
Edmund Severn (December 10, 1862 – May 14, 1942) was an American composer and violinist.
 Born in England, in Nottingham, he moved to the United States at four, settling in Hartford, Connecticut and studying violin with his father; he later studied music in Berlin.
 There he studied the Joachim bowing technique.
 As a composer he wrote mainly orchestral music, as well as many pieces for his instrument, including a concerto; he also wrote three string quartets.
 He died in Melrose, Massachusetts.
His most famous work is his "Polish Dance" for violin and piano.
Hermann Zilcher (born August 18, 1881 in Frankfurt am Main; † 1 January 1948 in Würzburg) was a German composer, pianist, conductor and music teacher.
 He was the father of actress Eva Zilcher (1920-1994) and the conductor Heinz Reinhart Zilcher (1906-1967).
Zilcher received early piano lessons from his father, the composer and piano pedagogue Paul Zilcher (1855-1943), who was known as a composer of didactic piano and chamber music.
 The son studied from 1897 at the Dr. Hoch Conservatory in Frankfurt, piano with James Kwast, counterpoint and morphology with Iwan Knorr and composition with Bernhard Scholz.
 At graduation he was awarded the Mozart Prize.
 In Frankfurt.
 In 1901 he moved to Berlin, where he quickly established himself mainly as a pianist for singers and instrumentalists, with concert tours, which made him internationally known in the US and in Europe.
 In 1905 he returned to Frankfurt as a piano teacher at the Dr. Hoch Conservatory.
 In 1908 he was appointed by Felix Mottl as a piano professor and in 1916 as a composition professor at the Academy of Music in Munich.
 In Munich, he worked closely with the head of the Munich Kammerspiele, Otto Falckenberg (1873-1947), for whom he wrote incidental music.
 In 1920 he became director of the Bavarian State Conservatory in Würzburg, and founded in 1922, the Würzburg Mozart Festival, which soon became internationally famous.
 For these accomplishments Zilcher was appointed in 1924 Privy Councillor by the Bavarian government and the University of Würzburg awarded him an honorary doctorate.
Pauline Duchambge née de Montet (1778 – 23 April 1858) was a French Creole pianist, singer, and composer.
 Duchambdge (Montet) was born in Martinique, West Indies and was the daughter of a noble family.
 She was taken to Paris, where she received a convent education and studied the piano from composer and author Jean Baptiste Desormery, son of the famous comic opera actor and composer Léopold-Bastien Desormery.
 Pauline composed and performed as a singer and a pianist.
 She studied harmony and composition with Daniel Auber and with Luigi Cherubini, who wrote several compositions for her.
 She also studied piano and composition with Jan Ladislav Dussek.
 Pauline left the convent in 1792 and married Baron Duchambge in 1796.
 In 1798 at the age of 20, she lost both her parents and with them the family fortune.
 Soon afterwards she was later divorced.
 It was after these events that Duchamge musical education began in earnest.
 She studied church music with Jan Dussek, Luigi Cherubini and D.F.E Auber.
 In 1815, Duchambge met the French poet and novelist, Marceline Desbordes-Valmore beginning a lifelong friendship and collaboration.
 Their friendship is documented by a lengthy correspondence and a number of songs by Duchambge on Debordes-Valmore’s texts including L’adieu tout bas, La fiancée del marin, Je pense à lui, La jeune Châtelaine, Rêve du mousse, La sincère and La valse et l’automne.
 Duchambge also composed music to texts and romances of other female authors such as Mme Amble Tastu and Mme Emile De Girardin.
 Pauline Duchambge wrote over three hundred romances, a very popular genre in the nineteenth century.
 Auber deposited three hundred of Duchambge’s songs in the Bibliothèque du Conservatoire in Paris.
 Eleven of Duchambge's individual songs and albums of songs were published between 1827 and 1841 by some of the leading Parisian publishers: Jean Antoine Meissonnier, Jacques-Joseph Frey, A. Petibon, and Ignace Pleyel.
 Her works reached a German audience through the Berlin publisher Maurice Schlesinger and the Schott firm in Mainz.
 In addition to songs, Duchambge wrote a few piano pieces.
 Duchambge had a difficult life, struggling with poverty, delicate health, and the disenchantments of love; her music expresses her emotions.
 She commented: "Love, it is life!
 but a life full of troubles, illusions, deceptions, repentance, discouragements…. "
Euryanthe is a German "grand, heroic, romantic" opera by Carl Maria von Weber, first performed at the Theater am Kärntnertor, Vienna on 25 October 1823.
 Though acknowledged as one of Weber's most important operas, the work is rarely staged because of the weak libretto by Helmina von Chézy (who, incidentally, was also the author of the failed play "Rosamunde", for which Franz Schubert wrote music).
 "Euryanthe" is based on the 13th-century romance ""L'Histoire du très-noble et chevalereux prince Gérard, comte de Nevers et la très-virtueuse et très chaste princesse Euriant de Savoye, sa mye.""
Étienne-Joseph Floquet (23 November 174810 May 1785) was a French composer, mainly of operas.
 He was born in Aix-en-Provence and began his career by writing church music, before moving to Paris in 1767.
 There, Floquet made a name for himself with the requiem he wrote for the funeral of the composer Jean-Joseph de Mondonville in 1772.
 Floquet's first work for the Paris Opéra, the "ballet héroïque" "L'union de l'amour et les arts," was a triumph, enjoying 60 performances between its premiere in September 1773 and January 1774.
 The audience at the premiere was so enthusiastic that the performance had to be stopped several times because of the applause and, at the final curtain, Floquet was presented on stage, the first composer in the history of the Paris Opéra to enjoy such an honour.
 However, the arrival of the German composer Christoph Willibald Gluck in Paris later that year changed French musical taste and Floquet's style became unfashionable.
 After the failure of his next opera, "Azolan", Floquet decided to travel to Italy to perfect his musical education.
 There he studied composition under Nicola Sala in Naples and counterpoint under Padre Martini in Bologna, where he turned momentarily back to church music composing a "Te deum".
Franz Peter Schubert (] ; 31 January 179719 November 1828) was an Austrian composer.
Robert Gluck (born 1955) is a pianist and composer whose repertoire spans jazz, live electronic music, and avant-garde music.
 Karl Ackermann (All About Jazz), wrote of the latest of Gluck’s five recordings: “As a composer and player, Gluck ranks with the likes of Andrew Hill and Cecil Taylor… Something Quiet is completely original, artistically spontaneous, and intellectually challenging.”
 Allan Kozinn (New York Times) wrote that Gluck is “an accomplished jazz pianist” who played with “virtuosic fluidity.”
 Keyboard magazine named him June 2009 “Unsigned Artist of the Month.”
 Gluck’s current musical collaborators include saxophonists Joe Giardullo and Ras Moshe, bassists Christopher Dean Sullivan and Michael Bisio, drummer Dean Sharp, and computer musician/composer Neil Rolnick.
John Serry (born 1954, John Serry Jr., in New York City) is a jazz pianist and composer, as well as a composer of contemporary classical music works that feature percussion, on which he also doubles.
 His debut solo album was 'Exhibition' (1979 Chrysalis Records), for which he received a Grammy Nomination (Best Instrumental Arrangement) for his composition, 'Sabotage'.
 The players included Carlos Vega drums, Jimmy Johnson bass, Gordon Johnson bass, Bob Sheppard saxophone/woodwinds, Gordon Gottlieb percussion and Barry Finnerty guitar.
 His second album, 'Jazziz' (1980 Chrysalis Records) received four stars in Downbeat Magazine and feature review of the month in Keyboard magazine; it was also the inspiration for the naming, in 1983, of JAZZIZ magazine by publisher Michael Fagien.
 The personnel was the same as that of 'Exhibition', except with Mike Sembello on guitar.
 Serry's 3rd album was 'Enchantress' (1996 Telarc) about which Downbeat Magazine wrote: "He has a strong sense of melody, his touch is confident, his ideas are sensible and his playing is beautifully controlled."
 Of 'Enchantress', Jim Aikin wrote in Keyboard magazine: "What a pleasure to find that he is back, still turning out charts that turn heads by turning corners."
 and Hilary Grey wrote in JazzTimes: "Serry's fleet fingered runs on songs like the jaunty, catchy 'DYT it' are both technically impressive and subtle."
 'Enchantress' was recorded after Serry had been awarded the Grand Prize in the 1995 JAZZIZ magazine 'Keyboards on Fire' pianist/composer competition, judged by Dave Brubeck and Bob James (grand piano awarded by Steinway).
 The musicians were John Riley drums, Gerry Niewood and Ralph Bowen sax and Tom Brigandi bass.
 All of the compositions (and arrangements) for all three albums were by Serry and he was Producer for 'Exhibition' and 'Jazziz'.