Question: Who was the uncle of German physicist and philosopher who was the longest-living member of the team which performed nuclear research in Germany during the Second World War?

full_context: Document 1: Karl Lintner: Karl Lintner (1917 - 11.2.2015) is an Austrian nuclear physicist. During World War II, he worked on the German nuclear energy project, also known as the Uranium Club; he did research on the inelastic dispersion of fast neutrons in uranium. After the war, he taught and did nuclear research at the University of Vienna. He was a full member of the Austrian Academy of Sciences.
Document 2: Oskar Minkowski: Oskar Minkowski ( ; ] 13 January 1858 – 18 July 1931) held a professorship at the University of Breslau and is most famous for his research on diabetes. He was the brother of the mathematician Hermann Minkowski and father of astrophysicist Rudolph Minkowski.
Document 3: Werner Heisenberg: Werner Karl Heisenberg ( ; ] ; 5 December 1901 – 1 February 1976) was a German theoretical physicist and one of the key pioneers of quantum mechanics. He published his work in 1925 in a breakthrough paper. In the subsequent series of papers with Max Born and Pascual Jordan, during the same year, this matrix formulation of quantum mechanics was substantially elaborated. He is known for the Heisenberg uncertainty principle, which he published in 1927. Heisenberg was awarded the Nobel Prize in Physics for 1932 "for the creation of quantum mechanics".
Document 4: Carl Friedrich von Weizsäcker: Carl Friedrich Freiherr von Weizsäcker (28 June 1912 – 28 April 2007) was a German physicist and philosopher. He was the longest-living member of the team which performed nuclear research in Germany during the Second World War, under Werner Heisenberg's leadership. There is ongoing debate as to whether or not he and the other members of the team actively and willingly pursued the development of a nuclear bomb for Germany during this time.
Document 5: Friedrich von Müller: Friedrich von Müller (17 September 1858, Augsburg – 18 November 1941, Munich) was a German physician remembered for describing Müller's sign. He was the son of the head of the medical department in the hospital in Augsburg. He studied natural sciences in Munich and medicine in Munich, under Carl von Voit, and Würzburg. He was awarded his doctorate in Munich in 1882, and became assistant to Carl Jakob Adolf Christian Gerhardt in Würzburg and later Berlin. He was habilitated in internal medicine in 1888 and became professor of clinical propaedeutics and laryngology in Bonn. He moved to Breslau in 1890, Marburg in 1892, and Basel in 1899, before returning to Munich in 1902.
Document 6: Otto Haxel: Otto Haxel (2 April 1909, in Neu-Ulm – 26 February 1998, in Heidelberg) was a German nuclear physicist. During World War II, he worked on the German nuclear energy project. After the war, he was on the staff of the Max Planck Institute for Physics in Göttingen. From 1950 to 1974, he was an ordinarius professor of physics at the University of Heidelberg, where he fostered the use of nuclear physics in environmental physics; this led to the founding of the Institute of Environmental Physics in 1975. During 1956 and 1957, he was a member of the Nuclear Physics Working Group of the German Atomic Energy Commission. From 1970 to 1975, he was the Scientific and Technical Managing Director of the Karlsruhe Research Center.
Document 7: Heinz Pose: He did pioneering work which contributed to the understanding nuclear energy levels. He worked on the German nuclear energy project "Uranverein". After World War II, the Soviet Union sent him to establish and head Laboratory V in Obninsk. From 1957, he was at the "Joint Institute for Nuclear Research" in Dubna, Russia. He settled in East Germany in 1959, and he held teaching posts and directed nuclear physics institutes at the "Technische Hochschule" Dresden.
Document 8: Karl Schwarzschild: Karl Schwarzschild (] ; October 9, 1873 – May 11, 1916) was a German physicist and astronomer. He was also the father of astrophysicist Martin Schwarzschild.
Document 9: Georg Stetter: Georg Carl Stetter (23 December 1895 – 14 July 1988) was an Austrian-German nuclear physicist. Stetter was Director of the Second Physics Institute of the University of Vienna. He was a principal member of the German nuclear energy project, also known as the Uranium Club. In the latter years of World War II, he was also the Director of the Institute for Neutron Research. After the war, he was dismissed from his university positions, and he then became involved in dust protection research. After his dismissal was overturned, he became Director of the First Physics Institute of the University of Vienna, and he began research on aerosols. In 1962, Stetter became a full Member of the Austrian Academy of Sciences. In that same year, the Academy established their Commission for Clean Air, and Stetter served as its chairman until 1985.
Document 10: Heinz Barwich: Heinz Barwich (22 July 1911 in Berlin – 10 April 1966 in Cologne) was a German nuclear physicist. He was deputy director of the Siemens Research Laboratory II in Berlin. At the close of World War II, he followed the decision of Gustav Hertz, to go to the Soviet Union for ten years to work on the Soviet atomic bomb project, for which he received the Stalin Prize. He was director of the "Zentralinstitut für Kernforschung" (Central Institute for Nuclear Research) at Rossendorf near Dresden. For a few years he was director of the Joint Institute for Nuclear Research in Dubna, Russia. In 1964 he defected to the West.
Document 11: Rudolf Fleischmann: Rudolf Fleischmann (1 May 1903 – 3 February 2002) was a German experimental nuclear physicist from Erlangen, Bavaria. He worked for Walther Bothe at the Physics Institute of the University of Heidelberg and then at the Institute for Physics of the Kaiser Wilhelm Institute for Medical Research. Through his association with Bothe, he became involved in the German nuclear energy project, also known as the Uranium Club; one of Fleischmann’s areas of interest was isotope separation techniques. In 1941 he was appointed associate professor of experimental physics at the newly established Reichsuniversität Straßburg, in France. Late in 1944, he was arrested under the American Operation Alsos and sent to the United States. After he returned to Germany 1946, he became Director of the State Physical Institute at the University of Hamburg and developed it as a center of nuclear research. In 1953, he took a position at the University of Erlangen and achieved "emeritus" status in 1969. He was a signatory of the Göttingen Manifesto in 1957.
Document 12: Viktor von Weizsäcker: Viktor Freiherr von Weizsäcker (21 April 1886 in Stuttgart – 9 January 1957 in Heidelberg) was a German physician and physiologist. He was the brother of Ernst von Weizsäcker, and uncle to Richard von Weizsäcker and Carl Friedrich von Weizsäcker. (For his family tree, see Weizsäcker.)
Document 13: August von Hayek: August von Hayek (14 December 1871 – 11 June 1928) was an Austrian physician and botanist born in Vienna. He was the son of naturalist Gustav von Hayek and the father of economist Friedrich Hayek (1899–1992).
Document 14: Johann Christian Stark (the Elder): Johann Christian Stark (13 January 1753 – 11 January 1811) was a German physician and obstetrician born in Oßmannstedt. His nephew, also named Johann Christian Stark (1769–1837), was a noted obstetrician.
Document 15: Hans Hermann Weyer: Hans Hermann Consul Weyer, Graf von Yorck is a German trader in nobility and academics titles, and a flamboyant member of the international jet set. He is a former window dresser who became an honorary consul of Bolivia in Luxembourg and who became known in the 1960s for selling certificates of nobility, doctoral degrees from invented colleges and universities, and other decorations in Germany. Described in 1982 by John Vinocur of The New York Times as "a Munich rogue who sold phony titles" to "used-car dealers hungry for respectability", Weyer is given credit for Hans Lichtenberg's adoption in the latter's biographical profile in the cast list of the 2005 German reality-television program "". Lichtenberg then married Zsa Zsa Gabor. According to the newspaper Rhein-Zeitung, Weyer was adopted as an adult, in 1996, by a Countess of Yorck, a 78-year-old noblewoman, and now uses the name "Consul Weyer Graf von Yorck".
ground_truth: Viktor Freiherr von Weizsäcker