After Emperor Wucheng's death, Emperor Wucheng's son Gao Yan, the Prince of Langya, was displeased with the authority that He Shikai was still wielding, and killed him in a coup in 571, but subsequently was himself killed.
Emperor Wucheng's death led to a succession crisis, as his son Gao Yan, the Prince of Langya, rebelled against He Shikai's continued dominance, resulting in a violent confrontation that ultimately proved fatal for both parties.