curse never dying
Durnehviir is an undead dragon whose name means "Curse Never Dying" in the Dragon Language.
In the Merethic Era when dragons ruled Tamriel, Durnehviir took part in many battles against other dragons for control of the skies. Instead of fighting, he delved into "alok-dilon", or necromancy. Like many great necromancers, he contacted the Ideal Masters in an attempt to gain their favor. They granted him the power to summon armies of undead from the Soul Cairn, but in return he had to guard a vampire named Valerica who had been trapped in the Soul Cairn by the Ideal Masters. The Masters neglected to inform Durnehviir of Valerica's immortality, and essentially tricked him into eternal servitude. In time, his body became accustomed to the Soul Cairn, making it impossible for him to ever permanently return to Tamriel.