Question: When did Chopin's family move to the city where Stanisław Modzelewski died?

full_context: Document 1: Oklahoma City: Oklahoma City also has its share of very brutal crimes, particularly in the 1970s. The worst of which occurred in 1978, when six employees of a Sirloin Stockade restaurant on the city's south side were murdered execution-style in the restaurant's freezer. An intensive investigation followed, and the three individuals involved, who also killed three others in Purcell, Oklahoma, were identified. One, Harold Stafford, died in a motorcycle accident in Tulsa not long after the restaurant murders. Another, Verna Stafford, was sentenced to life without parole after being granted a new trial after she had previously been sentenced to death. Roger Dale Stafford, considered the mastermind of the murder spree, was executed by lethal injection at the Oklahoma State Penitentiary in 1995.
Document 2: Frédéric Chopin: Frédéric François Chopin (/ˈʃoʊpæn/; French pronunciation: ​[fʁe.de.ʁik fʁɑ̃.swa ʃɔ.pɛ̃]; 22 February or 1 March 1810 – 17 October 1849), born Fryderyk Franciszek Chopin,[n 1] was a Polish and French (by citizenship and birth of father) composer and a virtuoso pianist of the Romantic era, who wrote primarily for the solo piano. He gained and has maintained renown worldwide as one of the leading musicians of his era, whose "poetic genius was based on a professional technique that was without equal in his generation." Chopin was born in what was then the Duchy of Warsaw, and grew up in Warsaw, which after 1815 became part of Congress Poland. A child prodigy, he completed his musical education and composed his earlier works in Warsaw before leaving Poland at the age of 20, less than a month before the outbreak of the November 1830 Uprising.
Document 3: List of people executed in Pennsylvania: Executed person Date Victim (s) Governor Keith Zettlemoyer 2 May 1995 Charles DeVetsco. Tom Ridge Leon Moser 15 August 1995 Linda Moser, Donna Moser, and Joanne Moser. Gary M. Heidnik 6 July 1999 Deborah Dudley and Sandra Lindsay.
Document 4: Władysław Łukasiuk: The official version of the communist government was that Władysław Łukasiuk "Młot" died during a short vacation from fighting in the village of Czaje-Wólka in June 1947. He was shot by one of his deputies, Czesław Dybowski, "Rejtan", because Łukasiuk had just executed Czesław's younger brother Leopold for disobeying orders (Leopold did not carry out the execution of an alleged member of the communists Polish secret police). After Czesław shot Lukasiuk he took his younger brother to the doctor. Leopold died soon, due to gangrene. The communist secret police dug up Lukasiuk's and Leopold's body and moved them to an unknown location.
Document 5: Władysław Grydziuszko: Following the end of World War II, Władysław Grydziuszko was killed in an accident near Treia, Macerata in Italy on January 29, 1946. During a routine 2nd Armoured Brigade (Poland) training period, Władysław was killed when he fell underneath one of his tanks breaking his spine at the neck. The military considered his death "Killed in Action " (KIA) because he was on duty. His death was instantaneous, and soon afterward there was a memorial service held in his honor. Some 400 soldiers attended his funeral. He was buried in the Polish cemetery in Loreto, Italy on January 30, 1946. The two witnesses of his death was a future Polish Politician named Zygmunt Ostrowski and Michał Matusiewicz.
Document 6: Stanisław Modzelewski: Stanisław Modzelewski (born 15 March 1929 in Szczepankowo near Łomża, died on 13 November 1969 in Warsaw) was a Polish serial killer known as "The Vampire of Gałkówek" active in Łódź, Poland during the 1950s. He completed three classes of primary school, he was a driver by occupation and he worked in Warsaw. In the period of 1952-1956 and in 1967, he murdered seven women and attempted a murder of six other women. Although he is believed to have murdered another, eighth victim (he even confessed to it), it was never proven, as the body was never found. He was sentenced to death and the execution by hanging, which was carried out in November 1969, in Warsaw.
Document 7: Václav Mrázek: Václav Mrázek (October 22, 1925 – December 29, 1957 in Prague) was a Czech serial killer who was convicted of murdering seven people. Six of his victims were women, and one was a man. His murders (or attempted murders) were primarily sexually motivated, although he also burgled his victims' homes. Besides murders, he was convicted of 127 other crimes.
Document 8: 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 9: Frédéric Chopin: Fryderyk's father, Nicolas Chopin, was a Frenchman from Lorraine who had emigrated to Poland in 1787 at the age of sixteen. Nicolas tutored children of the Polish aristocracy, and in 1806 married Justyna Krzyżanowska, a poor relative of the Skarbeks, one of the families for whom he worked. Fryderyk was baptized on Easter Sunday, 23 April 1810, in the same church where his parents had married, in Brochów. His eighteen-year-old godfather, for whom he was named, was Fryderyk Skarbek, a pupil of Nicolas Chopin. Fryderyk was the couple's second child and only son; he had an elder sister, Ludwika (1807–55), and two younger sisters, Izabela (1811–81) and Emilia (1812–27). Nicolas was devoted to his adopted homeland, and insisted on the use of the Polish language in the household.
Document 10: Stanisław Pyjas: Stanisław Włodzimierz Pyjas (1953–1977) was a Polish student of the Jagiellonian University in Kraków, member of the anticommunist student movements. He died on May 7, 1977 in Kraków. The exact circumstances of Pyjas’ death are still a mystery and his case, which is still disputed, shook public opinion in Poland. According to one scenario he was murdered and the killers, probably members of the communist Secret Services, arranged the death to look like an accident. The official scenario, however, states that his death occurred after he fell from the stairs while being drunk. In 2011 his body was examined, and the outcome states that it was the fall that caused his death and that he had not been beaten.
Document 11: Antoni Szczęsny Godlewski: He was killed on 8 August 1944 after the break out of the Uprising, on the corner of Bracka St. and Aleje Jerozolimskie. His place of death is marked by a memorial plaque. For his bravery in battle he was posthumously awarded the Cross of Valour and the Order of Virtuti Militari, Fifth Class. Today, a street in the Wola neighborhood of Warsaw is named after him.
Document 12: Frédéric Chopin: In 1827, soon after the death of Chopin's youngest sister Emilia, the family moved from the Warsaw University building, adjacent to the Kazimierz Palace, to lodgings just across the street from the university, in the south annex of the Krasiński Palace on Krakowskie Przedmieście,[n 5] where Chopin lived until he left Warsaw in 1830.[n 6] Here his parents continued running their boarding house for male students; the Chopin Family Parlour (Salonik Chopinów) became a museum in the 20th century. In 1829 the artist Ambroży Mieroszewski executed a set of portraits of Chopin family members, including the first known portrait of the composer.[n 7]
Document 13: Frédéric Chopin: In October 1810, six months after Fryderyk's birth, the family moved to Warsaw, where his father acquired a post teaching French at the Warsaw Lyceum, then housed in the Saxon Palace. Fryderyk lived with his family in the Palace grounds. The father played the flute and violin; the mother played the piano and gave lessons to boys in the boarding house that the Chopins kept. Chopin was of slight build, and even in early childhood was prone to illnesses.
Document 14: Frédéric Chopin: In 1817 the Saxon Palace was requisitioned by Warsaw's Russian governor for military use, and the Warsaw Lyceum was reestablished in the Kazimierz Palace (today the rectorate of Warsaw University). Fryderyk and his family moved to a building, which still survives, adjacent to the Kazimierz Palace. During this period, Fryderyk was sometimes invited to the Belweder Palace as playmate to the son of the ruler of Russian Poland, Grand Duke Constantine; he played the piano for the Duke and composed a march for him. Julian Ursyn Niemcewicz, in his dramatic eclogue, "Nasze Przebiegi" ("Our Discourses", 1818), attested to "little Chopin's" popularity.
Document 15: Frédéric Chopin: Two Polish friends in Paris were also to play important roles in Chopin's life there. His fellow student at the Warsaw Conservatory, Julian Fontana, had originally tried unsuccessfully to establish himself in England; Albert Grzymała, who in Paris became a wealthy financier and society figure, often acted as Chopin's adviser and "gradually began to fill the role of elder brother in [his] life." Fontana was to become, in the words of Michałowski and Samson, Chopin's "general factotum and copyist".
ground_truth: October 1810
sub_queries: Stanisław Modzelewski >> place of death Answer: Warsaw
When did Chopin's family move to Warsaw ? Answer: October 1810