 In 305 BC, two of King Zhaoxiang's older half-brothers, Prince Zhuang (公子壯) and Prince Yong (公子雍), who a year ago were both rival contenders for the throne, conspired to carry out a coup with Queen Huiwen (惠文后, the mother of the late King Wu) and Queen Wu (悼武王后, King Wu's childless wife, who was a princess from Wei) as well as a dozen other lords and court officials who were against King Zhaoxiang's ascension.The rebellion was quickly crushed by Wei Ran, who slaughtered all the conspirators except Queen Wu, who was exiled back to Wei.With the annihilation of the dissidents, King Zhaoxiang's hold to the throne was secured.