Ivar Tristan Lundsten (professional name: Brynjard Tristan) (born 14 June 1976) is a Norwegian bassist and songwriter, presently living in Oslo, but originally hails from the nearby municipalities of Nesodden and Jessheim.

[1] He is mostly known for his time as bassist for the symphonic black metal band Dimmu Borgir, from 1993 to 1996, which he left after the album Stormblåst.

In 1994-1995 Brynjard was also a member of Old Man's Child, where he was a songwriter and played bass on the band's demo In The Shades Of Life.

[1][2] Presently Brynjard is working on his new band, Angstkrieg, where he is the vocalist.

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