Question: Who was the child of the politician that annexed Alsace to the new German Empire in 1871?

full_context: Document 1: 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 2: 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 3: 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 4: 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 5: Franco-Prussian War: In the Prussian province of Posen, with a large Polish population, there was strong support for the French and angry demonstrations at news of Prussian-German victories—a clear manifestation of Polish nationalist feeling. Calls were also made for Polish recruits to desert from the Prussian Army—though these went mainly unheeded. An alarming report on the Posen situation, sent to Bismarck on 16 August 1870, led to the quartering of reserve troop contingents in the restive province. The Franco-Prussian War thus turned out to be a significant event also in German–Polish relations, marking the beginning of a prolonged period of repressive measures by the authorities and efforts at Germanisation.
Document 6: 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 7: Alsace-Lorraine: Under the German Empire of 1871–1918, the annexed territory constituted the "Reichsland" or Imperial Territory of (German for Alsace-Lorraine). The area was administered directly from Berlin, but was granted limited autonomy in 1911. This included its constitution and state assembly, its own flag, and the ("Alsatian Flag Song") as its anthem.
Document 8: 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).
Document 9: 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 10: Alsace: Alsace-Lorraine was occupied by Germany in 1940 during the Second World War. Although Germany never formally annexed Alsace-Lorraine, it was incorporated into the Greater German Reich, which had been restructured into Reichsgaue. Alsace was merged with Baden, and Lorraine with the Saarland, to become part of a planned Westmark. During the war, 130,000 young men from Alsace and Lorraine were inducted into the German army against their will (malgré-nous) and in some cases, the Waffen SS. Some of the latter were involved in war crimes such as the Oradour-sur-Glane massacre. Most of them perished on the eastern front. The few that could escape fled to Switzerland or joined the resistance. In July 1944, 1500 malgré-nous were released from Soviet captivity and sent to Algiers, where they joined the Free French Forces.
Document 11: Alsace: France started the Franco-Prussian War (1870–71), and was defeated by the Kingdom of Prussia and other German states. The end of the war led to the unification of Germany. Otto von Bismarck annexed Alsace and northern Lorraine to the new German Empire in 1871; unlike other members states of the German federation, which had governments of their own, the new Imperial territory of Alsace-Lorraine was under the sole authority of the Kaiser, administered directly by the imperial government in Berlin. Between 100,000 and 130,000 Alsatians (of a total population of about a million and a half) chose to remain French citizens and leave Reichsland Elsaß-Lothringen, many of them resettling in French Algeria as Pieds-Noirs. Only in 1911 was Alsace-Lorraine granted some measure of autonomy, which was manifested also in a flag and an anthem (Elsässisches Fahnenlied). In 1913, however, the Saverne Affair (French: Incident de Saverne) showed the limits of this new tolerance of the Alsatian identity.
Document 12: Alsace: During the First World War, to avoid ground fights between brothers, many Alsatians served as sailors in the Kaiserliche Marine and took part in the Naval mutinies that led to the abdication of the Kaiser in November 1918, which left Alsace-Lorraine without a nominal head of state. The sailors returned home and tried to found a republic. While Jacques Peirotes, at this time deputy at the Landrat Elsass-Lothringen and just elected mayor of Strasbourg, proclaimed the forfeiture of the German Empire and the advent of the French Republic, a self-proclaimed government of Alsace-Lorraine declared independence as the "Republic of Alsace-Lorraine". French troops entered Alsace less than two weeks later to quash the worker strikes and remove the newly established Soviets and revolutionaries from power. At the arrival of the French soldiers, many Alsatians and local Prussian/German administrators and bureaucrats cheered the re-establishment of order (which can be seen and is described in detail in the reference video below). Although U.S. President Woodrow Wilson had insisted that the région was self-ruling by legal status, as its constitution had stated it was bound to the sole authority of the Kaiser and not to the German state, France tolerated no plebiscite, as granted by the League of Nations to some eastern German territories at this time, because Alsatians were considered by the French public as fellow Frenchmen liberated from German rule. Germany ceded the region to France under the Treaty of Versailles.
Document 13: 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 14: 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 15: 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.
ground_truth: Herbert von Bismarck
sub_queries: Who annexed Alsace to the new German Empire in 1871? Answer: Otto von Bismarck
Otto von Bismarck >> child Answer: Herbert von Bismarck