 In summer 571, Gao Wei's younger brother Gao Yan the Prince of Langye, angry at the hold He Shikai and Mu Tipo had on power, killed He Shikai, and then gathered his troops.He then tried to use trickery to draw Lady Lu out of the palace so that he could murder her as well, but was unable to.He was soon himself captured when the general Hulü Guang (Empress Hulü's father) refused to side with him, and it was at least partially at her instigation that Gao Wei put Gao Yan to death in fall 571.