Lineup:
David "Impious" Larsson - Guitars, Vocals (1994-present)
See also: ex-Adversary, ex-War, ex-Behemoth, ex-Infernal
Perra Karlsson - Drums (2004-present)
See also: Deströyer 666, Nex, Benediction (live), Nominon, ex-Dion Fortune, ex-Serpent, ex-T.A.R, ex-Wortox, ex-Die Hard, ex-Interment (live), ex-Altar, ex-Suffer
Claes "Clabbe" Ramberg - Bass (2005-present)
See also: ex-Godhate, ex-Abhoth
Joel Lindholm - Guitars (lead) (2015-present)
See also: ex-Degial, ex-Patronymicon, ex-Shining, ex-Procession (live), ex-Undergång
http://www.metal-archives.com/bands/In_Aeternum/2341