Josef Mysliveček (9 March 1737 – 4 February 1781) was a Czech composer who contributed to the formation of late eighteenth-century classicism in music.
 Mysliveček provided his younger friend Wolfgang Amadeus Mozart with significant compositional models in the genres of symphony, Italian serious opera, and violin concerto; both Wolfgang and his father Leopold Mozart considered him an intimate friend from the time of their first meetings in Bologna in 1770 until he betrayed their trust over the promise of an operatic commission for Wolfgang to be arranged with the management of the Teatro San Carlo in Naples.
 He was close to the Mozart family, and there are frequent references to him in the Mozart correspondence.
Amadeus is a 1984 American period drama film directed by Miloš Forman, adapted by Peter Shaffer from his stage play "Amadeus".
 The story, set in Vienna, Austria, during the latter half of the 18th century, is a fictionalized biography of Wolfgang Amadeus Mozart.
 Mozart's music is heard extensively in the soundtrack of the movie.
 The film follows Italian composer Antonio Salieri at the court of Emperor Joseph II, and his jealous vendetta against his younger rival, Wolfgang Amadeus Mozart.
"This is a mostly complete list of the works of Wolfgang Amadeus Mozart, according to the sixth edition of the Köchel catalogue.
 For a selective list of his works, grouped by genre, see List of compositions by Wolfgang Amadeus Mozart".
Heinrich August Marschner (16 August 1795 – 14 December 1861) was the most important composer of German opera between Weber and Wagner.
Maria Constanze Cäcilia Josepha Johanna Aloysia Mozart (née Weber) (5 January 1762 – 6 March 1842) was an Austrian woman who trained as a singer.
 She married twice, her first husband being Wolfgang Amadeus Mozart, and was later, jointly with her second husband Georg Nikolaus von Nissen, Mozart's biographer.
 She and Mozart had six children, Karl Thomas Mozart, Franz Xaver Wolfgang Mozart, and four who died in infancy.
Wolfgang Amadeus Mozart ( ; ; ] ; 27 January 1756 – 5 December 1791), baptised as Johannes Chrysostomus Wolfgangus Theophilus Mozart, was a prolific and influential composer of the Classical era.
Franz Xaver Wolfgang Mozart (26 July 1791 – 29 July 1844), also known as Wolfgang Amadeus Mozart, Jr., was the youngest child of six born to Wolfgang Amadeus Mozart and his wife Constanze.
 He was the younger of his parents' two surviving children.
 He was a composer, pianist, conductor, and teacher from the late classical period whose musical style was of an early Romanticism, heavily influenced by his father's mature style.
Hans Heiling is a German Romantic opera in 3 acts with prologue by Heinrich Marschner with a libretto by Eduard Devrient, who also sang the title role at the première at the Königliche Hofoper (now Berlin State Opera), Berlin, on 24 May 1833, and went on to become Marschner's most successful opera.
 The opera brought the composer a considerable reputation, although this did not materially affect his position in Hanover, where he was music director of the Court Theatre.
 Like Marschner's other great success, "Der Vampyr", the plot of "Hans Heiling" makes great use of supernatural elements.
 As with several of his operas, "Hans Heiling" is based on a folk legend.
The Neue Mozart-Ausgabe (abbreviated as "NMA"; in English, "New Mozart Edition") is the second complete works edition of the music of Wolfgang Amadeus Mozart.
 A longer and more formal title for the edition is "Wolfgang Amadeus Mozart.
 Neue Ausgabe sämtlicher Werke."
The Alte Mozart-Ausgabe is the name by which the first complete edition of the music of Wolfgang Amadeus Mozart, is known nowadays, published by Breitkopf & Härtel from January 1877 to December 1883, with supplements published until 1910.
 The name "Alte Mozart-Ausgabe" (abbreviated "AMA") is actually a modern invention to distinguish the edition from the second Mozart complete works edition, the "Neue Mozart-Ausgabe"; the publication title of Breitkopf & Härtel's edition was "Wolfgang Amadeus Mozarts Werke.
 Kritisch durchgesehene Gesammtausgabe."
 (It is therefore sometimes referred to as the ""Mozart Gesammtausgabe"".)

Question: Who was born first: Wolfgang Amadeus Mozart or Heinrich Marschner?
Answer: Wolfgang Amadeus Mozart