Question: What is the name of the city in Austria where this well known extreme metal band is from?

Context paragraphs:
Pentagram Chile: Pentagram Chile (previously known as Pentagram) is an extreme metal band from Chile, formed in 1985.  They were part of the first wave of extreme metal in the mid 80's, along with bands like Possessed, Celtic Frost, Sepultura and others.  Considered as a very influential band in the Black metal and Death metal genres, they have influenced bands like At The Gates, Dismember, Napalm Death and Avulsed among others.

Bondage Goat Zombie: Bondage Goat Zombie is the seventh studio album by the Austrian blackened death metal band Belphegor.  Artwork by Ralph Manfreda

Belphegor (band): Belphegor is a extreme metal band from Salzburg, Austria.  They originally formed in 1991 under the name Betrayer before changing their name in 1993.  They are named after the demon Belphegor.

Venom (band): Venom are an English heavy metal band formed in 1979 in Newcastle upon Tyne.  Coming to prominence towards the end of the new wave of British heavy metal, Venom's first two albums—"Welcome to Hell" (1981) and "Black Metal" (1982)—are considered a major influence on thrash metal and extreme metal in general.  Venom's second album proved influential enough that its title was used as the name of an extreme metal subgenre: black metal.

Extreme metal: Extreme metal is a loosely defined umbrella term for a number of related heavy metal music subgenres that have developed since the early 1980s.  It has been defined as a "cluster of metal subgenres characterized by sonic, verbal and visual transgression".  The term usually refers to a more abrasive, harsher, underground, non-commercialized style or sound associated with the speed metal, thrash metal, death metal, black metal and doom metal genres.  With the exception of doom metal, all of these genres are characterized by fast tempos, attesting to their roots in hardcore punk, which has also fused with extreme metal in the forms of crossover thrash, crust punk, grindcore, sludge metal and metalcore.  Though many extreme sub-styles are not very well known to mainstream music fans, extreme metal has influenced an array of musical performers inside and outside heavy metal.

Emperor Magus Caligula: Emperor Magus Caligula (Magnus "Masse" Broberg; born 23 May 1973 in Ludvika, Sweden) is an extreme metal musician best known as the former vocalist, bassist and lyricist of Swedish black metal band Dark Funeral, performing for the band between 1995 and 2010.  He has also been the vocalist of death metal bands Demonoid, replacing Christofer Johnsson, and Sanctification.  He was the original vocalist for Hypocrisy and has featured in other extreme metal bands including Dominion-Caligula (with former Dark Funeral secondary guitarist Dominion) and God Among Insects.  He has also performed backing vocals for the Swedish black metal band Sportlov.

Carnival in Coal: Carnival in Coal is an extreme metal/avant-garde metal band from France.  Founded in 1995, the band mixed death metal, black metal and other extreme metal genres with genres such as easy listening, disco, and pop.

Dam (band): Dam are an English extreme metal band from London, formed in 1997.  The band's music, heavily influenced by early-1990s death metal, can be characterised as a fusion of death metal, black metal, and thrash metal, with some hints of progressive rock and heavy metal.  The band describe their style as extreme metal.

George Fisher (musician): George "Corpsegrinder" Fisher (born July 8, 1969) is an American extreme metal vocalist for the American death metal band Cannibal Corpse, the lesser-known melodic death metal band Paths of Possession, and the lesser-known extreme metal supergroup Serpentine Dominion.  He recorded two albums with Florida's Monstrosity before leaving and joining Cannibal Corpse in late 1995, replacing vocalist Chris Barnes, who is now the vocalist for Six Feet Under.  He also provided guest vocals for New York technical death metal band Suffocation on the songs "Reincremation" and "Mass Obliteration" from their debut album, "Effigy of the Forgotten", as well as guest vocals for California deathcore band Suicide Silence on the song "Control" from their fourth album, "You Can't Stop Me".  Fisher also performed guest vocals on Job for a Cowboy's 2014 album "Sun Eater" on the song "The Synthetic Sea."  As a death metal vocalist, Fisher employs the "death growl" extended vocal technique.

Parabellum (band): Parabellum were a Colombian extreme metal band from Medellín active in the 1980s.  The band was described by "Terrorizer" magazine as one of the world's first black metal bands, as well as the first extreme metal band from Colombia and one of the very first from all South America.  According to writer Emilio Cuesta, Øystein "Euronymous" Aarseth—a musician associated with the early Norwegian black metal scene—has said Parabellum and Medellín's Reencarnación were both influential to his own band Mayhem.

Supporting paragraphs: Bondage Goat Zombie Belphegor (band)
Answer: Salzburg