Fur Elise (For Elise) by Beethoven 

Bagatelle No. 25 in A minor (WoO 59, Bia 515) for solo piano, commonly known as "Für Elise" (German: [fyːɐ̯ ʔeˈliːzə], English: "For Elise"), is one of Ludwig van Beethoven's most popular compositions.[1][2][3] It was not published during his lifetime, only being discovered (by Ludwig Nohl) 40 years after his death, and may be termed either a Bagatelle or an Albumblatt. 

The identity of "Elise" is unknown; researchers have suggested Therese Malfatti, Elisabeth Röckel, or Elise Barensfeld. Identity of "Elise": 1-Therese Malfatti Therese Malfatti, widely believed to be the dedicatee of "Für Elise" It is not certain who "Elise" was. Max Unger suggested that Ludwig Nohl may have transcribed the title incorrectly and the original work may have been named "Für Therese",[9] a reference to Therese Malfatti von Rohrenbach zu Dezza (1792–1851). She was a friend and student of Beethoven's to whom he supposedly proposed in 1810, though she turned him down to marry the Austrian nobleman and state official Wilhelm von Droßdik in 1816.[10] Note that the piano sonata no. 24, dedicated to Countess Thérèse von Brunswick, is also referred to sometimes as "für Therese". 

The Austrian musicologist Michael Lorenz[11] has shown that Rudolf Schachner, who in 1851 inherited Therese von Droßdik's musical scores, was the son of Babette Bredl, born out of wedlock. Babette in 1865 let Nohl copy the autograph in her possession. 2- Elisabeth Röckel A portrait of Elizabeth Röckel. Portrait of Elisabeth Röckel by Joseph Willibrord Mähler Anna Milder-Hauptmann, letter to "Frau Kapellmeisterin Elise Hummel", 1830 According to a 2010 study by Klaus Martin Kopitz, there is evidence that the piece was written for the 17-year-old German soprano singer Elisabeth Röckel (1793–1883), the younger sister of Joseph August Röckel, who played Florestan in the 1806 revival of Beethoven's opera Fidelio. 

"Elise", as she was called by a parish priest (later she called herself "Betty"), had been a friend of Beethoven's since 1808,[12] who, according to Kopitz, perhaps wanted to marry her.[13] But in April 1810 Elisabeth Röckel got an engagement at the theater in Bamberg where she made her stage debut as Donna Anna in Mozart's Don Giovanni and became a friend of the writer E. T. A. Hoffmann.[14] In 1811 Röckel came back to Vienna,[15] in 1813 she married there Beethoven's friend Johann Nepomuk Hummel. In 2015 Kopitz published further sources about Beethoven's relationship to Röckel and the famous piano piece. It shows that she was also a close friend of Anna Milder-Hauptmann and lived together with her and her brother Joseph August in the Theater an der Wien. In a letter to Röckel, which she wrote in 1830, she called her indeed "Elise".[16]. 3-Elise Barensfeld In 2014, the Canadian musicologist Rita Steblin suggested that Elise Barensfeld might be the dedicatee. Born in Regensburg and treated for a while as a child prodigy, she first travelled on concert tours with Beethoven's friend Johann Nepomuk Mälzel, also from Regensburg, and then lived with him for some time in Vienna, where she received singing lessons from Antonio Salieri.

Steblin argues that Beethoven dedicated this work to the 13-year-old Elise Barensfeld as a favour to Therese Malfatti who lived opposite Mälzel's and Barensfeld's residence and who might have given her piano lessons.[17] Steblin admits that question marks remain for her hypothesis.[18]. 

We wish you a peaceful life :)