"With much regret we have to announce that the gigs in Oberhausen, Black Thrash Inferno, 27th of March and the Raging Death Date ,4th of April are going to be the last shows with Tyrannizer as she will leave the band afterwards. It was a hard and sad decision for her but personal circumstances on her side didn't leave any other option.
This is a hard decision for all of us but as said before, there was no other way and we accept that. To make it clear, there is no bad blood at all.
Tyrannizer was the vocalist of Nocturnal for about 7 years. She was and will be an important part of the band. So come to the shows and support her for a last time. Those gigs probably are also the last ones of Nocturnal for 2015."

http://www.facebook.com/nocturnalunholythrash
http://www.metal-archives.com/bands/Nocturnal/7684