King Ajatashatru (Skt. Ajātaśatru; Tib. མ་སྐྱེས་དགྲ་, Wyl. ma skyes dgra; Trad. Chin. 阿闍世王), also called Darshaka (Wyl. mthong ldan). Ajatashatru literally means “Unborn Enemy”, since he was an enemy of his father even before he was born. He was a king during the time of the Buddha. He killed his father, King Bimbisara, but then had great remorse. The Buddha then taught him, which is recorded in the Sutra Dispelling the Regret of Ajātaśatru. He sponsored the First Buddhist Council.