Wikipedia:List of hoaxes on Wikipedia/Franz Josef Weern

Franz Josef Weern (2 June 1812 – 17 March 1902) was a Norwegian composer who wrote music in the romantic period. Among his greatest compositions are Vordene Sumarnatt, made for the play by Waldemar Nielsen

Biography
Franz Josef Weern was born in Heggedal in  Norway. Weern was the fifth son of governor Jonas Amadeus Weern who also worked with the peasants. His mother, Lovinda, became his first teacher. His inspiration came from the folk music of his region, something he mentioned as early as in 1832.

In the summer of 1844, Weern went to Copenhagen, Denmark, and stayed there for five years. There he met the Danish composers Chrisopher Tarsens, and Pavl Gittensten. He became ill, and had to leave Denmark, traveling home to his fathers farm in Heggedal

Music
Weern is considered a revolutionary composer of his time, drawing inspiration from Norwegian folk music. Among Weern's best-known pieces are his Trultevisa, Takk, mitt glade bygdeland (for piano), and his incidental music to Waldemar Lövin's play Alderdom

Another well-known piece is his Tøndervals (originally written for the flute but later played for string orchestra).