question: Ludwig Wenzel Lachnith was influenced by which Austrian "Father of the Symphony?"
answer: Joseph Haydn
context: Title: Ludwig Wenzel Lachnith
  Passage: Ludwig Wenzel Lachnith (Prague, July 7, 1746 – Paris, October 3, 1820) was a Bohemian horn player and versatile composer influenced by Joseph Haydn and Ignaz Pleyel.  Today he is chiefly remembered because of his adaptions of operas by Wolfgang Amadeus Mozart.  The French composer and writer Hector Berlioz immortalized him in a diatribe in his autobiography.
  Title: Anna Wenzel
  Passage: Anna Wenzel (born February 2, 1980 in Vienna) is an Austrian former competitive figure skater.  She is the 2001 Austrian national champion.  She reached the free skate at two ISU Championships – the 1998 Junior Worlds in Saint John, New Brunswick, where she placed 20th; and the 2001 Europeans in Bratislava, where she finished 18th.  Her older sister, Marie-Theres Wenzel, also competed internationally for Austria.
  Title: Joseph Haydn
  Passage: (Franz) Joseph Haydn ( ; ] ; 31 March 173231 May 1809) was an Austrian composer of the Classical period.  He was instrumental in the development of chamber music such as the piano trio and his contributions to musical form have earned him the epithets "Father of the Symphony" and "Father of the String Quartet".
  Title: Franz de Paula Adam von Waldstein
  Passage: Franz de Paula Adam Norbert Wenzel Ludwig Valentin von Waldstein (14 February 1759 – 24 May 1823) was an Austrian soldier, explorer and naturalist.
citations: Ludwig Wenzel Lachnith Joseph Haydn