Question: Who is the composer of the song that Friederike Grün was in who is a composer of the Romantic school?

Context paragraphs:
Babette von Bülow: Clara Bertha Friederike von Bülow (née Clara Bertha Friederike Eberty; known as Babette von Bülow; September 30, 1850 – March 8, 1927) was a German writer of short stories, comedies and farces under the pen name Hans Arnold.  Born in Cieplice Śląskie-Zdrój, she was the daughter of the lawyer, writer and amateur astronomer Felix Eberty, professor at the University of Breslau and Mary Hasse.  She grew up in Breslau where she studied in a French school and married Lieutenant Colonel Adolf von Bülow on June 10, 1876.  The military career of her husband led them to live in different garrisons such as Hanover in 1893, Erfurt in 1896, Frankfurt Oder in 1900, Potsdam in 1902 and again from 1905 in Erfurt.  She personally knew Theodor Fontane.

Sophie Mereau: Sophie Friederike Mereau (27 March 1770 in Altenburg – 31 October 1806 in Heidelberg) was a writer of the German romantic school.  Her maiden name was Schubart, but she did most of her work under the married name of Mereau.  She also later married a second time, to writer Clemens Brentano, and took her husband's surname as her own.  She wrote novels, stories and poems, and she translated and published journals.

Princess Amalie of Saxony: Amalie Marie Friederike Auguste (10 August 1794 – 18 September 1870), Princess of Saxony, full name Maria Amalia Friederike Augusta Karolina Ludovica Josepha Aloysia Anna Nepomucena Philippina Vincentia Franziska de Paula Franziska de Chantal, was a German composer writing under the pen name "A. Serena", and a dramatist under the name "Amalie Heiter".  She was the daughter of Prince Maximilian of Saxony and Princess Carolina of Parma.  She was the granddaughter of Frederick Christian, Elector of Saxony; niece of Frederick Augustus I, King of Saxony and Anthony, King of Saxony; sister of Frederick Augustus II, King of Saxony and John, King of Saxony; and aunt of Albert, King of Saxony and George, King of Saxony.

Friederike Grün: Friederike Grün (14 June 1836- January 1917) was a German operatic soprano who had an active career during the latter half of the 19th century.  Possessing a powerful voice with a wide vocal range, she sang a broad repertoire that encompassed Italian, French, and German opera.  High points from her stage repertoire included the title heroine in Vincenzo Bellini's "Norma", Agathe in Carl Maria von Weber's "Der Freischütz", Leonore in "Fidelio", Rachel in Fromental Halévy's "La Juive", and Valentine in Giacomo Meyerbeer's "Les Huguenots".  She is best remembered today for portraying several roles in the first complete presentation of Richard Wagner's "The Ring Cycle" at the very first Bayreuth Festival in 1876.

Carl Maria von Weber: Carl Maria Friedrich Ernst von Weber (18 or 19 November 1786 5 June 1826) was a German composer, conductor, pianist, guitarist and critic, and was one of the first significant composers of the Romantic school.

Eugène Delacroix: Ferdinand Victor Eugène Delacroix (] ; 26 April 1798 – 13 August 1863) was a French Romantic artist regarded from the outset of his career as the leader of the French Romantic school.

Für alle: "Für alle" (English translation: "For Everyone") was the German entry in the Eurovision Song Contest 1985, performed in German by Wind.  It had beaten "Grün Grün Grün" (English translation: "Green Green Green") by singer Caro Pukke, which had finished 4th.  Other contestants were Danny Fischer, Bernd Clüver, Jürgen Renfordt, Christian Franke, Peter Wyoming Bender and Susan Schubert.

Michael Howard (musician): Michael Stockwin Howard (14 September 1922 – 4 January 2002) was an English choral conductor, organist and composer.  He was an important part of the Early Music movement in the middle of the last century, in particular as a celebrated interpreter of 16th century polyphony In his later years he made notable recordings of the late French Romantic school of organ composers, particularly César Franck, on the Cavaillé Coll organ at St. Michael's Abbey in Farnborough.  The National Pipe Organ Register now claims that the organ appears in a list of organs by Mutin (originally attributed to Aristide Cavaille-Coll).

Mademoiselle Rose: Mademoiselle Rose (also "Seated Nude") is a painting by French Romantic artist Eugène Delacroix, regarded as the leader of the French Romantic school.  This nude was painted before 1824, and is currently held and exhibited at the Louvre in Paris.  Another is at the Alte Nationalgalerie in Berlin.

Joseph Fischhof: Joseph Fischhof (4 April 1804 – 28 June 1857) was a Czech-Austrian pianist, composer and professor at the Vienna Conservatory of Music, belonging to the Romantic school.

Supporting paragraphs: Friederike Grün Carl Maria von Weber
Answer: Carl Maria von Weber