Lurgon is a Great UnClean One of Nurgle. In 941.M41, the Lord of Change Ix'thar'ganix manipulated him into possessing the body of Ordo Malleus Inquisitor [Saffor Sengir after promising the Greater-Daemon a way into the mortal realm. In the resulting Plague of Madness, Lurgon was defeated by the combined efforts of Kaldor Draigo and Arvann Stern.