Jing Ke
Despite the wars, Yan survived through the Warring States period. In 227 BC, with Qin troops on the border after the collapse of Zhao, Crown Prince Dan sent an assassin named Jing Ke to kill the king of Qin (later Qin Shi Huang), hoping to end the Qin threat. The mission failed, with Jing Ke dying at the hands of the King of Qin in Xianyang.