Nyblord Osiran

Nyblord Osiran ( ナイロルドオシラ ; Nairorudo Oshiran)  self proclaimed Master of Life and Death, King of Necromancers, Holder of the Heaven Keys and hundreds of other epithets, is one of the eldest and most infamous undead that has ever lived. Born as royalty in the ancient kingdom of Settra, he spent his mortal life trying to unveil the secrets of life and death much before Zeref had even born. He succeeded at binding himself his soul to a phylactery, transforming himself in one of the most ancient lich ever recorded in world history. Yet, like Zeref, the god Ankhseram punished him for wicked researches, cursing his body to age and wither until his very bones had rotted away. In his obsession for finding a way to annul the curse, Nyblord committed so many atrocious experiments that his own kingdom revolted against him, dethroning him and forcing him to flee. ''