Title: Deutsches Wörterbuch
Content:  The Deutsches Wörterbuch ("The German Dictionary"), abbreviated DWB, is the largest and most comprehensive dictionary of the German language in existence. Encompassing modern High German vocabulary in use since 1450, it also includes loanwords adopted from other languages into German. Entries cover the etymology, meanings, attested forms, synonyms, usage peculiarities, and regional differences of words found throughout the German speaking world. The dictionary's historical linguistics approach, illuminated by examples from primary source documents, makes it to German what the Oxford English Dictionary is to English. The first completed DWB lists over 330,000 headwords in 67,000 print columns spanning 32 volumes. The Deutsches Wörterbuch was begun by the Brothers Grimm in 1838 and the initial volumes were published in 1854. Unfinished at the time of their deaths, the dictionary was finally completed by a succession of later scholars and institutions in 1961. In 1971, a 33rd supplement volume was published containing 25,000 additional entries. New research projects began in 2004 to expand and update the oldest parts of the dictionary to modern academic standards. Volumes A–F were planned for completion in 2012 by the Language Research Centre at the Berlin-Brandenburg Academy of Sciences and Humanities and the University of Göttingen.
Title: Historical dictionary
Content:  The largest historical dictionary of German is the Deutsches Wörterbuch originally compiled by Jacob and Wilhelm Grimm and completed after their death in 1961. A second edition of the letters A–F was completed in 2016. There is also the Deutsches Fremdwörterbuch which exclusively covers words loaned into German from other languages, which were largely (though not entirely) omitted from the Grimm dictionary. There is also a Frühneuhochdeutsches Wörterbuch covering Early Modern German, the Mittelhochdeutsches Wörterbuch covering Middle High German, and an Althochdeutsches Wörterbuch covering Old High German.
Title: List of German dictionaries
Content:  This list includes notable historic, standardized, and common-use dictionaries of the German language. The beginnings of German dictionaries date back to a series of glossaries from the 8th century CE. The first comprehensive German dictionary, the Deutsches Wörterbuch (DWB), was begun by the Brothers Grimm in 1838. The Duden dictionary, begun in 1880 and now in its 25th edition, is currently the prescriptive source for the spelling of German. The official dictionary for Austrian German, the Österreichisches Wörterbuch (ÖWB), is published by the Austrian Federal Government and is now in its 41st edition.
Title: German language
Content:  The most comprehensive guide to the vocabulary of the German language is found within the Deutsches Wörterbuch. This dictionary was created by the Brothers Grimm, and is composed of 16 parts which were issued between 1852 and 1860. In 1872, grammatical and orthographic rules first appeared in the Duden. In 1901, the Second Orthographical Conference ended with a complete standardization of the German language in its written form, and the Duden Handbook was declared its standard definition. The Deutsche Bühnensprache had established conventions for German pronunciation in theatres three years earlier; however, this was an artificial standard that did not correspond to any traditional spoken dialect. Rather, it was based on the pronunciation of Standard German in Northern Germany, although it was subsequently regarded often as a general prescriptive norm, despite differing pronunciation traditions especially in the 
Title: Etymological Dictionary of the German Language
Content:  The Etymological Dictionary of the German Language (Etymologisches Wörterbuch der deutschen Sprache) is a reference book for the history of the German language, and was one of the first books of its kind ever written. Originally written in 1883 by Friedrich Kluge, it is still actively maintained and considered a standard work among the German etymological dictionaries. The most recent publication was released in 2011 in print, eBook and as an Android app.
Title: Dictionary of Contemporary German
Content: Helene Malige-Klappenbach (Hrsg.): Das „Wörterbuch der deutschen Gegenwartssprache“. Bericht, Dokumentation und Diskussion (= Lexicographica, Series maior, Bd. 12). With the cooperation of Franz Josef Hausmann. Niemeyer, Tübingen 1986. ISBN 3-484-30912-1. ; Georg Stötzel, Thorsten Eitz (Hrsg.): Zeitgeschichtliches Wörterbuch der deutschen Gegenwartssprache. Schlüsselwörter und Orientierungsvokabeln. With the cooperation of Astrid Jährling-Marienfeld, Lea Plate and others. Olms, Hildesheim, 2nd extended and updated edition 2003, ISBN 978-3-487-11759-1. 
Title: Deutsches Rechtswörterbuch
Content:  ) Ulrich Kronauer, Jörn Garber (Hrsg.): Recht und Sprache in der deutschen Aufklärung (= Hallesche Beiträge zur europäischen Aufklärung. Bd. 14). Niemeyer, Tübingen 2000, ISBN: 3-484-81014-9. ; ( de ) Adolf Laufs: Das Deutsche Rechtswörterbuch. In: Akademie-Journal. Bd. 2, 1993,, S. 7–11. ; ( de ) Ingrid Lemberg: Die Belegexzerption zu historischen Wörterbüchern am Beispiel des Frühneuhochdeutschen Wörterbuches und des Deutschen Rechtswörterbuches. In: Herbert Ernst Wiegand (Hrsg.): Wörterbücher in der Diskussion II. Vorträge aus dem Heidelberger Lexikographischen Kolloquium (= Lexicographica. Series maior. Bd. 70). Niemeyer, Tübingen 1996, ISBN: 3-484-30970-9, S. 83–102. ; ( de ) Ingrid Lemberg: Entstehung des Deutschen Rechtswörterbuchs. In: Lexicographica. Internationales Jahrbuch für Lexikographie. Bd. 12, 1996,, 
Title: Deutsches Fremdwörterbuch
Content:  The Deutsches Fremdwörterbuch (DFWB) is a multiple-volume dictionary of foreign words loaned into the German language, covering words which are in current use in German on historical principles.
Title: Deutsches Rechtswörterbuch
Content:  Lexicographica. Series maior. Bd. 84). Niemeyer, Tübingen 1998, ISBN: 3-484-30984-9, S. 262–284. ; ( de ) Ingrid Lemberg, Heino Speer: Bericht über das Deutsche Rechtswörterbuch. In: Zeitschrift der Savigny-Stiftung für Rechtsgeschichte. Germanistische Abteilung. Bd. 114, 1997, S. 679–697. ; ( de ) Eva-Maria Lill: Die EDV – das Ende aller Verzettelung? Der Einsatz der elektronischen Datenverarbeitung am Deutschen Rechtswörterbuch. In: Rudolf Grosse (Hrsg.): Bedeutungserfassung und Bedeutungsbeschreibung in historischen und dialektologischen Wörterbüchern. Beiträge zu einer Arbeitstagung der Deutschsprachigen Wörterbücher, Projekte an Akademien und Universitäten vom 7. bis 9. März 1996 anläßlich des 150jährigen Jubiläums der Sächsischen Akademie der Wissenschaften zu Leipzig (= Abhandlungen der Sächsischen Akademie der Wissenschaften zu Leipzig. Philologisch-Historische 
Title: Deutsches Rechtswörterbuch
Content:  (= Studies in German Language and Literature. SGLL. Bd. 6 = Studies in Russian and German. Bd. 3). Band 2. Mellen, Lewiston NY u. a. 1991, ISBN: 0-7734-9761-7, S. 675–711. ; ( de ) Heino Speer: DRW to FAUST. Ein Wörterbuch zwischen Tradition und Fortschritt. In: Lexicographica. Internationales Jahrbuch für Lexikographie. Bd. 10, 1994, S. 171–213. ; ( de ) Heino Speer: Ein Wörterbuch, die elektronische Datenverarbeitung und die Folgen. In: Akademie-Journal. Heft 2, 1998, S. 11–16. ; ( de ) Heino Speer: Deutsches Rechtswörterbuch. In: Handwörterbuch zur deutschen Rechtsgeschichte. HRG. Band 1: Aachen – Geistliche Bank. 2., völlig überarbeitete und erweiterte Auflage. Schmidt, Berlin 2008, ISBN: 978-3-503-07912-4, Sp. 1007–1011. 

Question: Who is the author of Deutsches Wörterbuch?
Answer: Brothers Grimm.
The Brothers Grimm.
Grimm Brothers.