Question: Who was the child of the leader who wanted to unify germany (prussia)?

full_context: Document 1: Wilhelm von Bismarck: Count Wilhelm von Bismarck-Schönhausen (né "Wilhelm Otto Albrecht von Bismarck") (1 August 1852 – 30 May 1901) was a German counselor, civil servant and politician, who served as a member of the Reichstag from 1880 to 1881 and president of the Regency of Hanover from 1889 to 1890. The youngest son of Otto von Bismarck, he and his brother Herbert von Bismarck both resigned their posts after the elder Bismarck was dismissed as Chancellor of Germany in 1890. Wilhelm subsequently accepted an appointment as Governor of East Prussia in 1894.
Document 2: Unification of Germany: The unification of Germany into a politically and administratively integrated nation state officially occurred on 18 January 1871, in the Hall of Mirrors at the Palace of Versailles in France. Princes of the German states, excluding Austria, gathered there to proclaim Wilhelm I of Prussia as German Emperor after the French capitulation in the Franco - Prussian War. Unofficially, the de facto transition of most of the German - speaking populations into a federated organization of states had been developing for some time through alliances formal and informal between princely rulers -- but in fits and starts; self - interests of the various parties hampered the process over nearly a century of autocratic experimentation, beginning in the era of the Napoleonic Wars, which saw the dissolution of the Holy Roman Empire of the German Nation (1806), and the subsequent rise of German nationalism.
Document 3: Germans: In 1870, after France attacked Prussia, Prussia and its new allies in Southern Germany (among them Bavaria) were victorious in the Franco-Prussian War. It created the German Empire in 1871 as a German nation-state, effectively excluding the multi-ethnic Austrian Habsburg monarchy and Liechtenstein. Integrating the Austrians nevertheless remained a strong desire for many people of Germany and Austria, especially among the liberals, the social democrats and also the Catholics who were a minority within the Protestant Germany.
Document 4: Germans: In 1866, the feud between Austria and Prussia finally came to a head. There were several reasons behind this war. As German nationalism grew strongly inside the German Confederation and neither could decide on how Germany was going to be unified into a nation-state. The Austrians favoured the Greater Germany unification but were not willing to give up any of the non-German-speaking land inside of the Austrian Empire and take second place to Prussia. The Prussians however wanted to unify Germany as Little Germany primarily by the Kingdom of Prussia, whilst excluding Austria. In the final battle of the German war (Battle of Königgrätz) the Prussians successfully defeated the Austrians and succeeded in creating the North German Confederation.
Document 5: Baron Heinrich Karl von Haymerle: Baron Heinrich Karl von Haymerle (7 December 1828 – 10 October 1881) was an Austrian statesman born and educated in Vienna. He took part in the students' uprising in the revolution of 1848 and narrowly escaped execution. He served in the diplomatic corps at Athens, Dresden, and Frankfurt as Secretary of Legation; and served as ambassador in Copenhagen (1864), took part in negotiating the Treaty of Prague (1866), and from Berlin went to Constantinople (1868), Athens (1869), The Hague (1872), and in 1877 to the Italian court. He represented Austria-Hungary at the Congress of Berlin in 1878 and served as foreign minister from 1879 to 1881. In this post he was especially active in effecting friendly relations with Italy and cementing the alliance with Germany.
Document 6: Unification of Germany: Historians debate whether Otto von Bismarck -- Minister President of Prussia -- had a master plan to expand the North German Confederation of 1866 to include the remaining independent German states into a single entity or simply to expand the power of the Kingdom of Prussia. They conclude that factors in addition to the strength of Bismarck's Realpolitik led a collection of early modern polities to reorganize political, economic, military, and diplomatic relationships in the 19th century. Reaction to Danish and French nationalism provided foci for expressions of German unity. Military successes -- especially those of Prussia -- in three regional wars generated enthusiasm and pride that politicians could harness to promote unification. This experience echoed the memory of mutual accomplishment in the Napoleonic Wars, particularly in the War of Liberation of 1813 -- 14. By establishing a Germany without Austria, the political and administrative unification in 1871 at least temporarily solved the problem of dualism.
Document 7: Otto Christian Archibald von Bismarck: He was the eldest of the three sons of Herbert von Bismarck, as well as the grandson of the German chancellor Otto von Bismarck and elder brother of Gottfried Graf von Bismarck-Schönhausen. A lawyer, he became the owner of the family estate in Schönhausen and joined the diplomatic service in 1927, serving in Stockholm (1927–28), London (1928–37), with the Foreign Ministry in Berlin (1937–40), as Envoy to Rome (Kingdom of Italy) (1940–43), and finally as head of the Italian section of the Foreign Ministry (1943–44).
Document 8: Imperialism: Not a maritime power, and not a nation-state, as it would eventually become, Germany’s participation in Western imperialism was negligible until the late 19th century. The participation of Austria was primarily as a result of Habsburg control of the First Empire, the Spanish throne, and other royal houses.[further explanation needed] After the defeat of Napoleon, who caused the dissolution of that Holy Roman Empire, Prussia and the German states continued to stand aloof from imperialism, preferring to manipulate the European system through the Concert of Europe. After Prussia unified the other states into the second German Empire after the Franco-German War, its long-time Chancellor, Otto von Bismarck (1862–90), long opposed colonial acquisitions, arguing that the burden of obtaining, maintaining, and defending such possessions would outweigh any potential benefits. He felt that colonies did not pay for themselves, that the German bureaucratic system would not work well in the tropics and the diplomatic disputes over colonies would distract Germany from its central interest, Europe itself.
Document 9: Bismarck Mausoleum: The Bismarck Mausoleum is the mausoleum of Prince Otto von Bismarck and his wife Johanna von Puttkamer. It is on the Schneckenberg hill just outside Friedrichsruh in northern Germany. Bismarck was the first Chancellor of Germany (1871–1890). The chapel is now a protected monument.
Document 10: Bismarck Monument (Bad Kissingen): The Bismarck Monument in Bad Kissingen is located in Hausen (a quarter of the German spa town, Bad Kissingen), which Chancellor Otto von Bismarck visited 14 times to "take the cure" between 1876 and 1893. The monument was built in 1877, during his lifetime. It was the first statue to be erected in Bismarck's honour.
Document 11: Territorial evolution of Germany: The territorial changes of Germany include all changes in the borders and territory of Germany from its formation in 1871 to the present. Modern Germany was formed in 1871 when Otto von Bismarck unified most of the German states, with the notable exception of Austria, into the German Empire. After the First World War, Germany lost about 10% of its territory to its neighbours and the Weimar Republic was formed. This republic included territories to the east of today's German borders.
Document 12: Herbert von Bismarck: Prince Nikolaus Heinrich Ferdinand Herbert von Bismarck (Born Nikolaus Heinrich Ferdinand Herbert von Bismarck-Schönhausen; 28 December 1849 – 18 September 1904) was a German politician, who served as Foreign Secretary from 1886 to 1890. His political career was closely tied to that of his father, Otto von Bismarck, and he left office a few days after his father's dismissal. He succeeded his father as the 2nd Prince of Bismarck in 1898. He was born in Berlin and died in Friedrichsruh.
Document 13: Germans: The Napoleonic Wars were the cause of the final dissolution of the Holy Roman Empire, and ultimately the cause for the quest for a German nation state in 19th-century German nationalism. After the Congress of Vienna, Austria and Prussia emerged as two competitors. Austria, trying to remain the dominant power in Central Europe, led the way in the terms of the Congress of Vienna. The Congress of Vienna was essentially conservative, assuring that little would change in Europe and preventing Germany from uniting. These terms came to a sudden halt following the Revolutions of 1848 and the Crimean War in 1856, paving the way for German unification in the 1860s. By the 1820s, large numbers of Jewish German women had intermarried with Christian German men and had converted to Christianity. Jewish German Eduard Lasker was a prominent German nationalist figure who promoted the unification of Germany in the mid-19th century.
Document 14: Bismarck monument: From 1868 onwards, Bismarck monuments were erected in many parts of the German Empire in honour of the long-serving Prussian minister-president and first German "Reichskanzler", Prince Otto von Bismarck. Today some of these monuments are on the soil of other countries including France, Poland and Russia as well as the former German colonies on other continents.
Document 15: Heinrich Mann: Born in Lübeck, as the oldest child of Senator Thomas Johann Heinrich Mann, grain merchant and finance minister of the Free City of Lübeck, a state of the German Empire, and Júlia da Silva Bruhns. He was the elder brother of novelist Thomas Mann. The Mann family was an affluent family of grain merchants of the Hanseatic city of Lübeck. After the death of his father, his mother relocated the family to Munich, where Heinrich began his career as a "freier Schriftsteller" (free novelist).
ground_truth: Herbert von Bismarck
sub_queries: who was the leader who wanted to unify germany (prussia) Answer: Otto von Bismarck
Otto von Bismarck >> child Answer: Herbert von Bismarck