Desolation was founded in 1994 by drummer Thomas Nagel and the guitar players Nicholas Marochow and Felix Hanisch. The line-up was then completed by Torsten Sander and Johannes Bergmann (both on vocals), Kai Mühlenbruch (bass) and Lydia Herrmann (keyboards).
1997 saw the first line-up change with the replacement of Lydia with Sebastian Thomas, who immediately took up his share of songwriting duties.
While recording the band's debut CD "Call The Storm" during the fall of 1999 Desolation had to part company with Torsten, as he and the band had grown apart musically. Fortunately it didn't take long to find a more than adequate replacement: The band quickly realized that keyboard player Sebastian, even though he had never been a singer before, definitely was the right man for the job.
Kai was getting more and more absorbed in his guitar wizardry and this resulted in spending more and more time with his other band Galloglass. We all agreed that it would be best for him to move on and focus on what he does best and so he left Desolation in 2002 without hard feelings on either side.
For a few months, the band replaced him with Henning Pfeiffer, but due to his involvement in two other bands and the HuntingGround Studio, Hannover, he had to leave the band because he wasn't able to put in enough time and effort. Thus, Desolation is presently without a bass player. In September 2004 Nicholas went to the USA for a semester, with Kai replacing him in our first major Tour with God Dethroned and Fallen Saints.
For a while, Kai remained a silent partner after this substitute effort. However, as of 2005 he's once more playing bass at all concerts.
2006 - Kai is leaving the band for a second time.
René Hühnerberg becomes the bassman

Source : http://www.desolation-online.de/