Castlevania

Dracula is an immortal being originally born in the 11th century. Having begun life as a holy knight called Gabriel Belmont, he fought along side the Brotherhood of Light, but ultimately lost everything special to him in a quest to destroy the 'Ultimate Evil'. Bitter having lost so much, Gabriel obtained unparalleled power from an ancient demon, and turned against the world he once fought for as Dracula; the most powerful vampire who ever lived.