The King Aj_ta_atru S_traKing Aj_ta_atru is well known among Buddhists for being misled by the Buddha's jealous brother in law and cousin, Devadatta, into bringing about his father's death and usurping the throne of the Kingdom of Magadha. Despite this, he also came to repent his deeds and became a sincere supporter of the Buddha. This publication presents four first English translations of s_tras on Aj_ta_atru, his repentance, and the eventual assurance of his attainment of