Question: When did Chopin return to Édouard de Reszke's birthplace?

full_context: Document 1: Frédéric Chopin: Four boarders at his parents' apartments became Chopin's intimates: Tytus Woyciechowski, Jan Nepomucen Białobłocki, Jan Matuszyński and Julian Fontana; the latter two would become part of his Paris milieu. He was friendly with members of Warsaw's young artistic and intellectual world, including Fontana, Józef Bohdan Zaleski and Stefan Witwicki. He was also attracted to the singing student Konstancja Gładkowska. In letters to Woyciechowski, he indicated which of his works, and even which of their passages, were influenced by his fascination with her; his letter of 15 May 1830 revealed that the slow movement (Larghetto) of his Piano Concerto No. 1 (in E minor) was secretly dedicated to her – "It should be like dreaming in beautiful springtime – by moonlight." His final Conservatory report (July 1829) read: "Chopin F., third-year student, exceptional talent, musical genius."
Document 2: Emil Pollert: Emil Pollert, born Emil Popper (20 January 1877, Liblice at Mělník – 23 October 1935, Prague) was a Czech opera singer at the National Theatre in Prague, in his time the main representative of bass roles.
Document 3: Bernard Ładysz: Bernard Ładysz (born 24 July 1922, Wilno, then Poland) is a Polish opera singer (bass-baritone) and actor. His recordings include "Lucia di Lammermoor" (with Maria Callas) and "The Devils of Loudon" (with Tatiana Troyanos).
Document 4: Frédéric Chopin: From September 1823 to 1826 Chopin attended the Warsaw Lyceum, where he received organ lessons from the Czech musician Wilhelm Würfel during his first year. In the autumn of 1826 he began a three-year course under the Silesian composer Józef Elsner at the Warsaw Conservatory, studying music theory, figured bass and composition.[n 3] Throughout this period he continued to compose and to give recitals in concerts and salons in Warsaw. He was engaged by the inventors of a mechanical organ, the "eolomelodicon", and on this instrument in May 1825 he performed his own improvisation and part of a concerto by Moscheles. The success of this concert led to an invitation to give a similar recital on the instrument before Tsar Alexander I, who was visiting Warsaw; the Tsar presented him with a diamond ring. At a subsequent eolomelodicon concert on 10 June 1825, Chopin performed his Rondo Op. 1. This was the first of his works to be commercially published and earned him his first mention in the foreign press, when the Leipzig Allgemeine Musikalische Zeitung praised his "wealth of musical ideas".
Document 5: Jozsef Gregor: József Gregor (8 August 1940 - 27 October 2006) was a renowned Hungarian bass-baritone/basso buffo who enjoyed success first in Hungary, then in France, Belgium and Canada, and finally in the United States. József Gregor was born in Rákosliget, a small town that is now part of Budapest. He studied violin for ten years and then, voice at the Liszt Academy in Budapest for one year but did not graduate. He started singing with the Hungarian Army chorus in 1958 before becoming a soloist in National Theatre of Szeged in Hungary. In Europe he sang in many opera houses, including Vlaamse Opera and La Scala in Milan. Beginning in 1989, József Gregor appeared in the US with the Portland Opera and later with the Houston Grand Opera (with Cecilia Bartoli at her American debut) and the Metropolitan Opera (with Bryn Terfel). His most famous roles included Sarastro, Osmin, Falstaff, Don Pasquale, Dulcamara, Don Basilio, Don Bartolo, Don Magnifico, Boris Godunov, Varlaam, Philip II, Bluebeard etc., roles in masses and oratorios, musicals (Tevye, Caiaphas), and songs. He died in Szeged of gastric cancer.
Document 6: Frédéric Chopin: At the end of 1831, Chopin received the first major endorsement from an outstanding contemporary when Robert Schumann, reviewing the Op. 2 Variations in the Allgemeine musikalische Zeitung (his first published article on music), declared: "Hats off, gentlemen! A genius." On 26 February 1832 Chopin gave a debut Paris concert at the Salle Pleyel which drew universal admiration. The critic François-Joseph Fétis wrote in the Revue et gazette musicale: "Here is a young man who ... taking no model, has found, if not a complete renewal of piano music, ... an abundance of original ideas of a kind to be found nowhere else ..." After this concert, Chopin realized that his essentially intimate keyboard technique was not optimal for large concert spaces. Later that year he was introduced to the wealthy Rothschild banking family, whose patronage also opened doors for him to other private salons (social gatherings of the aristocracy and artistic and literary elite). By the end of 1832 Chopin had established himself among the Parisian musical elite, and had earned the respect of his peers such as Hiller, Liszt, and Berlioz. He no longer depended financially upon his father, and in the winter of 1832 he began earning a handsome income from publishing his works and teaching piano to affluent students from all over Europe. This freed him from the strains of public concert-giving, which he disliked.
Document 7: Frédéric Chopin: Although it is not known exactly when Chopin first met Liszt after arriving in Paris, on 12 December 1831 he mentioned in a letter to his friend Woyciechowski that "I have met Rossini, Cherubini, Baillot, etc.—also Kalkbrenner. You would not believe how curious I was about Herz, Liszt, Hiller, etc." Liszt was in attendance at Chopin's Parisian debut on 26 February 1832 at the Salle Pleyel, which led him to remark: "The most vigorous applause seemed not to suffice to our enthusiasm in the presence of this talented musician, who revealed a new phase of poetic sentiment combined with such happy innovation in the form of his art."
Document 8: John Relyea: John Relyea is a 1998 graduate of the Curtis Institute of Music in Philadelphia. He studied with his father, with renowned opera bass Jerome Hines, and with bass-baritone Edward Zambara. John Relyea has performed with major symphony companies across the country, such as the New York Philharmonic, Santa Fe Opera, Seattle Opera and the Metropolitan Opera in addition to the Swedish Radio Symphony Orchestra.
Document 9: Dezső Ernster: Dezső Ernster (23 November 1898 – 15 February 1981) was a Hungarian opera singer who sang leading bass roles with the New York Metropolitan Opera from 1946 to 1963. In 1929, he created the role of Baron d'Houdoux in Hindemith's "Neues vom Tage".
Document 10: Frédéric Chopin: Possibly the first venture into fictional treatments of Chopin's life was a fanciful operatic version of some of its events. Chopin was written by Giacomo Orefice and produced in Milan in 1901. All the music is derived from that of Chopin.
Document 11: Warsaw: One of the most famous people born in Warsaw was Maria Skłodowska-Curie, who achieved international recognition for her research on radioactivity and was the first female recipient of the Nobel Prize. Famous musicians include Władysław Szpilman and Frédéric Chopin. Though Chopin was born in the village of Żelazowa Wola, about 60 km (37 mi) from Warsaw, he moved to the city with his family when he was seven months old. Casimir Pulaski, a Polish general and hero of the American Revolutionary War, was born here in 1745.
Document 12: Frédéric Chopin: Chopin took the new salon genre of the nocturne, invented by the Irish composer John Field, to a deeper level of sophistication. He was the first to write ballades and scherzi as individual concert pieces. He essentially established a new genre with his own set of free-standing preludes (Op. 28, published 1839). He exploited the poetic potential of the concept of the concert étude, already being developed in the 1820s and 1830s by Liszt, Clementi and Moscheles, in his two sets of studies (Op. 10 published in 1833, Op. 25 in 1837).
Document 13: Frédéric Chopin: Back in Warsaw that year, Chopin heard Niccolò Paganini play the violin, and composed a set of variations, Souvenir de Paganini. It may have been this experience which encouraged him to commence writing his first Études, (1829–32), exploring the capacities of his own instrument. On 11 August, three weeks after completing his studies at the Warsaw Conservatory, he made his debut in Vienna. He gave two piano concerts and received many favourable reviews—in addition to some commenting (in Chopin's own words) that he was "too delicate for those accustomed to the piano-bashing of local artists". In one of these concerts, he premiered his Variations on Là ci darem la mano, Op. 2 (variations on an aria from Mozart's opera Don Giovanni) for piano and orchestra. He returned to Warsaw in September 1829, where he premiered his Piano Concerto No. 2 in F minor, Op. 21 on 17 March 1830.
Document 14: Édouard de Reszke: Édouard de Reszke, originally Edward, (22 December 185325 May 1917) was a Polish bass from Warsaw. Born with an impressive natural voice and equipped with compelling histrionic skills, he became one of the most illustrious opera singers active in Europe and America during the late-Victorian era.
Document 15: Agnieszka Truskolaska: Agnieszka Marianna Truskolaska (1755 – 30 November 1831) was a Polish actress, opera singer and theatre director. She was one of the most admired female artists of her time in Poland.
ground_truth: September 1829
sub_queries: What is Édouard de Reszke's birthplace? Answer: Warsaw
When did Chopin return to Warsaw ? Answer: September 1829