Bhaalspawn

Before his death in the Spellplague, Bhaal, the Lord of Murder, had taken preparations by taking mortal form and mating with several mortal creatures, creating offspring known as the Bhaalspawn. These children of Bhaal grew up haunted by dreams of death and found themselves imbued with strange powers. Age had little effect upon them once they had grown to maturity, but as each Bhaalspawn was killed—often by a sibling—the divinity of Bhaal became more and more concentrated in his still-living sons and daughters.

One Bhaalspawn named Adrian Abdel resisted the murderous nature imparted to him by his father. When he grew to adulthood, he set out to right the wrongs committed by his siblings and those who sought to control the rebirth of Bhaal or tap that power. It came down to Adrian and Viekang as the last two Bhaalspawn. They fought in Baldur's Gate. It was ultimately Adrian who was left as the last Bhaalspawn when Viekang was slain by a guardsman. No longer able to suppress Bhaal's influence, Adrian transformed into a hideous avatar of the Lord of Murder and began attacking his people. He was slain by Rose and Lucien Lachance.

This event caused the resurrection of Bhaal.