He is the predecessor of Bhaal, Bane and Myrkul, who are known as the Dead Three. Before the they came into power, he lived in the Gray Wastes in the Castle of Bone. He ruled in this office for many thousands of years feeding on the discord of mortals and powers alike and welcoming all things to him as hate and power-lust took their lives, but eventually Jergal grew weary of his office. When the then mortal Dead Three came to take his power, he surrendered it to them willingly and became Myrkul's seneschal. He played no role in the Time of Troubles and it is unknown if he even still exists.