There are multiple artists with this name.

1)Northern is a pagan death metal band formed in Gdańsk in 2015 by Mikołaj Grabowski and Grzegorz Jaworski.
The current line-up is:
Marcin "Tur" Turbiarz - vocals
Mikołaj "Haldarn" Grabowski - guitar
Grzegorz Jaworski - guitar
Piotr "Ninja" Jankowski - bass
Jakub Biernacik - drums
You can find more info at:
https://northernpl.bandcamp.com/releases
https://www.facebook.com/NorthernBandPL/

2) Black metal band from Seabrook, New Hampshire (Formerly known as Cold Northern Vengeance).

3)Northern is an ambient/drone band from the North America consisting of two brothers, they also participate in the project willamette

http://infraction.bandcamp.com/album/drawn

http://infraction.bandcamp.com/album/jessa
4) Northern is a band from Kingston, PA.

Demo: http://www.mediafire.com/?j5e2y8k4zhulgu8

http://Facebook.com/northernWB

5) Atmospheric sludge/post-metal from Victoria, British Columbia, Canada

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