The Album "Minas Morgul" is also the city of the dead in J.R.R. Tolkien's book "The Lord of the Rings: The Two Towers".
The lyrics for the song "Mirdautas Vras", from the album Oath Bound, are written entirely in Black Speech, the language created by Sauron for his armies in the J.R.R. Tolkien book series "The Lord of the Rings". Not counting songs from the "Lord of the Rings" film soundtracks, this song is also the first song ever written entirely in the Black Speech language.
Unlike all other albums inspired by Tolkien's world, lyrics of Stronghold are based on old German tales of the Nibelungs, Rhein Gold and Siegfried & Brunhild.