user: Answer the following question: Information:  - Prussia was a historic state originating out of the Duchy of Prussia and the Margraviate of Brandenburg, and centred on the region of Prussia. For centuries, the House of ruled Prussia, successfully expanding its size by way of an unusually well-organised and effective army. Prussia, with its capital in and from 1701 in Berlin, shaped the history of Germany. In 1871, German states united to create the German Empire under Prussian leadership. In November 1918, the monarchies were abolished and the nobility lost its political power during the German Revolution of 191819. The Kingdom of Prussia was thus abolished in favour of a republicthe Free State of Prussia, a state of Germany from 1918 until 1933. From 1933, Prussia lost its independence as a result of the Prussian coup, when the Nazi regime was successfully establishing its ' laws in pursuit of a unitary state. With the end of the Nazi regime, the division of Germany into allied-occupation zones and the separation of its territories east of the line, which were incorporated into Poland and the Soviet Union, the State of Prussia ceased to exist de facto in 1945. Prussia existed "" until its formal liquidation by the Allied Control Council Enactment No. 46 of 25 February 1947.  - The Bach family was of importance in the history of music for nearly two hundred years, with over 50 known musicians and several notable composers, the best-known of whom was Johann Sebastian Bach (16851750). A family genealogy was drawn up by Johann Sebastian Bach himself in 1735, his 50th year, and completed by his son Carl Philipp Emanuel.  - Frederick William II (25 September 1744  16 November 1797) was King of Prussia, from 1786 until his death. He was in personal union the Prince-elector of Brandenburg and (via the Orange-Nassau inheritance of his grandfather) sovereign prince of the Canton of Neuchâtel. Pleasure-loving and indolent, he is seen as the antithesis to his predecessor, Frederick II. Under his reign, Prussia was weakened internally and externally, and he failed to deal adequately with the challenges to the existing order posed by the French Revolution. His religious policies were directed against the Enlightenment and aimed at restoring a traditional Protestantism. However, he was a patron of the arts and responsible for the construction of some notable buildings, among them the Brandenburg Gate in Berlin.  - The French Revolution was a period of far-reaching social and political upheaval in France that lasted from 1789 until 1799, and was partially carried forward by Napoleon during the later expansion of the French Empire. The Revolution overthrew the monarchy, established a republic, experienced violent periods of political turmoil, and finally culminated in a dictatorship under Napoleon that rapidly brought many of its principles to Western Europe and beyond. Inspired by liberal and radical ideas, the Revolution profoundly altered the course of modern history, triggering the global decline of absolute monarchies while replacing them with republics and liberal democracies. Through the Revolutionary Wars, it unleashed a wave of global conflicts that extended from the Caribbean to the Middle East. Historians widely regard the Revolution as one of the most important events in human history.  - Bückeburg is a town in Lower Saxony, Germany, on the border with North Rhine Westphalia. It is located in the district of Schaumburg close to the northern slopes of the Weserbergland ridge. Population: 21,030.  - The Brandenburg Concertos by Johann Sebastian Bach (BWV 10461051, original title: Six Concerts à plusieurs instruments) are a collection of six instrumental works presented by Bach to Christian Ludwig, Margrave of Brandenburg-Schwedt, in 1721 (though probably composed earlier). They are widely regarded as some of the best orchestral compositions of the Baroque era.  - A personal union is the combination of two or more states that have the same monarch while their boundaries, laws, and interests remain distinct. It differs from a federation in that each constituent state has an independent government, whereas a unitary state is united by a central government. The ruler in a personal union does not need to be a hereditary monarch.  - The Brandenburg Gate is an 18th-century neoclassical monument in Berlin, and one of the best-known landmarks of Germany. It is built on the site of a former city gate that marked the start of the road from Berlin to the town of Brandenburg an der Havel.  - Johann Christoph Friedrich Bach (21 June 1732  26 January 1795) was a harpsichordist and composer, the fifth son of Johann Sebastian Bach, sometimes referred to as the "Bückeburg Bach". He is not to be confused with other similarly named members of the Bach family.  - In music, counterpoint is the relationship between voices that are harmonically interdependent (polyphony) yet independent in rhythm and contour. It has been most commonly identified in the European classical tradition, strongly developing during the Renaissance and in much of the common practice period, especially in the Baroque. The term originates from the Latin "punctus contra punctum" meaning "point against point".  - Berlin is the capital and the largest city of Germany as well as one of its constituent 16 states. With a population of approximately 3.5 million people, Berlin is the second most populous city proper and the seventh most populous urban area in the European Union. Located in northeastern Germany on the banks of rivers Spree and Havel, it is the centre of the Berlin-Brandenburg Metropolitan Region, which has about 6 million residents from more than 180 nations. Due to its location in the European Plain, Berlin is influenced by a temperate seasonal climate. Around one-third of the city's area is composed of forests, parks, gardens, rivers and lakes.  - The prince-electors (or simply electors) of the Holy Roman Empire ((), pl. "Kurfürsten", ) were the members of the electoral college of the Holy Roman Empire.  - A cantata (literally "sung", past participle feminine singular of the Italian verb "cantare", "to sing") is a vocal composition with an instrumental accompaniment, typically in several movements, often involving a choir.  - Johann Sebastian Bach (28 July 1750) was a German composer and musician of the Baroque period. He enriched established German styles through his skill in counterpoint, harmonic and motivic organisation, and the adaptation of rhythms, forms, and textures from abroad, particularly from Italy and France. Bach's compositions include the "Brandenburg Concertos", the "Goldberg Variations", the Mass in B minor, two Passions, and over three hundred cantatas of which around two hundred survive. His music is revered for its technical command, artistic beauty, and intellectual depth.  - The Goldberg Variations, BWV 988, is a work written for harpsichord by Johann Sebastian Bach, consisting of an aria and a set of 30 variations. First published in 1741, the work is considered to be one of the most important examples of variation form. The "Variations" are named after Johann Gottlieb Goldberg, who may have been the first performer.  - A harpsichord is a musical instrument played by means of a keyboard. It produces sound by plucking a string when a key is pressed.  - The Mass in B minor (BWV 232) by Johann Sebastian Bach is a musical setting of the complete Ordinary of the Latin Mass. The work was one of Bach's last compositions, not completed until 1749, the year before his death. Much of the Mass gave new form to vocal music that Bach had composed throughout his career, dating back (in the case of the "Crucifixus") to 1714, but extensively revised. To complete the work, in the late 1740s Bach composed new sections of the "Credo" such as "Et incarnatus est".  - The Republic and Canton of Neuchâtel is a canton of French-speaking western Switzerland. In 2007, its population was 169,782, of whom 39,654 (or 23.4%) were foreigners. The capital is Neuchâtel.  - Wilhelm Friedrich Ernst Bach ( 24 May 1759 -- 25 December 1845 ) was the eldest son of Johann Christoph Friedrich Bach and the only grandson of Johann Sebastian Bach to gain fame as a composer . He was music director to Frederick William II of Prussia . He said , `` Heredity can tend to run out of ideas . '' Ernst Bach received training in music from his uncle , Carl Philipp Emanuel Bach , and from another uncle in England , Johann Christian Bach . He was in London when Johann Christian Bach died there on New Year 's Day , 1782 . Ernst Bach remained in England until 1784 before returning via Holland to Germany . He held a few positions , namely those of Kapellmeister of Minden in 1786 , and from 1788 to 1811 as Kapellmeister in Berlin with the blessing of King Friedrich Wilhelm II. Ernst Bach retired from his position after prince Heinrich , the brother of the Prussian King Friedrich Wilhelm III granted him a pension . Ernst Bach married twice . He had two daughters by his first wife , who died young , and a son by his second wife . When WFE 's only son died in infancy , the event served to extinguish the long line of musical Bachs . At the unveiling of the Bach Monument in Leipzig on 23 April 1843 , Ernst Bach met Robert Schumann . Schumann later described Ernst Bach as `` a very agile old gentleman of 84 years with snow - white hair and expressive features . '' One of Ernst Bach 's most remarkable compositions was Dreyblatt , a concerto for piano involving six hands . He wrote it in such a way in that it was to be performed with one large male in the middle and two petite females on either side of him . Ernst Bach indicated that the man was to stretch his arms around the ladies to play the outside parts , while the ladies performed the middle parts . He is buried at the Friedhof II der Sophiengemeinde Berlin .    Given the information, choose the subject and object entities that have the relation of 'place of birth'.
Answer:

assistant: wilhelm friedrich ernst bach , bückeburg