Title: Wolfgang Hackbusch
Content:  Wolfgang Hackbusch (born 24 October 1948 in Westerstede, Lower Saxony) is a German mathematician, known for his pioneering research in multigrid methods and later hierarchical matrices, a concept generalizing the fast multipole method. He was a professor at the University of Kiel and is currently one of the directors of the Max Planck Institute for Mathematics in the Sciences in Leipzig.
Title: Harry Buckwitz
Content:  Buckwitz was director of the Schauspielhaus Zürich from 1970 to 1977. His appointment there led to a fierce controversy with the journalist Hans Habe, who accused him of having once been a henchman of Adolf Hitler, in an article for the newspaper Welt am Sonntag. Habe based his accusation on quotations from the book Heimkehr: Vertrieben aus deutschem Land in Afrika, published in 1940 by the Reichskolonialbund under Buckwitz's name. Buckwitz replied that parts of his manuscripts written in 1940 on his return from internment in Tanganyika in a camp at Berchtesgaden had been altered without his knowledge before publication, while Friedrich Dürrenmatt and Rolf Hochhuth, among others, took sides for Buckwitz. Buckwitz was confirmed in office with a vote of confidence from the Board of Directors of the Zurich Schauspielhaus, which he fulfilled until 1977.
Title: Wolfgang Huber
Content:   Wolfgang Huber (born 12 August 1942 in Strasbourg, Germany) is a prominent German theologian and ethicist. Huber served as bishop of the Evangelical Church of Berlin-Brandenburg-Silesian Upper Lusatia until November 2009. Huber succeeded Manfred Kock as Chairperson of the Council of the Evangelical Church in Germany (EKD) in November 2003 and was succeeded by Bishop Margot Käßmann, the first woman in that position, in October 2009.
Title: Jörg Hacker
Content:  From 1980 to 1988 Hacker worked as a junior researcher at the University of Würzburg, where he obtained his habilitation in microbiology in 1986. From 1988 until 1993, Hacker was professor of microbiology at the University of Würzburg. In 1993 he moved to the chair for Molecular Infection Biology, which he held until 2008. From 2003 to 2009, he was vice president of the Deutsche Forschungsgemeinschaft. From March 2008 to March 2010, he succeeded Reinhard Kurth as president of the Robert Koch Institute. On 1 October 2009, Hacker was elected president of the German Academy of Sciences Leopoldina. The solemn 
Title: Peter Hacks
Content:  again as a freelance writer. His success on the world stage – most notably with "Ein Gespräch im Hause Stein über den abwesenden Herrn von Goethe" (A Discussion in the Stein Home about the Absent Mr. Goethe) – led to his literary acceptance within GDR and West-Germany. Hacks was a communist and supported the East German government's 1976 expatriation of the singer Wolf Biermann. His correspondence with the communist historian Kurt Gossweiler has been published. He won the Deutscher Jugendliteraturpreis. Hacks died in Groß Machnow. Together with his wife Hacks used the pseudonym Saul O’Hara through which they could write and publish boulevard comedies (Risky Marriage).
Title: Werner Hacke
Content:  Professor Werner Hacke, born 1948 in Duisburg, Germany, was Professor and Chairman of the Department of Neurology, University of Heidelberg, from 1987 to 2014 and holds now a Senior Professorship of Neurology at the University of Heidelberg, Germany.
Title: Hans Christoph Friedrich Graf von Hacke
Content:  Hans Christoph Friedrich Graf von Hacke (21 October 1699 in Staßfurt - 17 August 1754 in Berlin) was a Prussian General and Commandant of Berlin. The Hackescher Markt in Berlin is named after him.
Title: Hackl
Content: Anton Hackl (1915–1984), German Luftwaffe pilot ; Zeno Otton Hackl (1912–1992), Bosnian and Croatian actor ; Christine Stix-Hackl (born 1957), Austrian jurist ; David Hackl, film director and production designer ; Erich Hackl (born 1954), Austrian novelist ; Georg Hackl (born 1966), German luger ; Karlheinz Hackl (born 1949), Austrian actor ; Raphael Hackl (born 1987), German rugby union international Hackl is a German surname. Notable people with the surname include: 
Title: W. Wolfgang Fleischhacker
Content:  Walter Wolfgang Fleischhacker (born 29 April 1953 Baden bei Wien, Austria) is an Austrian psychiatrist and psychotherapist. Previously professor of psychiatry at the Medical University Innsbruck, he was appointed president of the university 1 October 2017.
Title: Wolfram Huschke
Content:  Wolfram Huschke (18 April 1946) is a German musicologist.

Question: Verify the following claims with "True" or "False": I've heard that Wolfgang Hackbusch did not have a successor!
Answer: True