 The ambitious Chen Shuling had design on the throne, and when Emperor Xuan died, while Chen Shubao was mourning over Emperor Xuan's casket, Chen Shuling pulled out a sharpened knife and stabbed Chen Shubao in the neck, who then collapsed.Empress Liu tried to stop Chen Shuling, but was also stabbed several times.However, the lady-in-waiting Lady Wu grabbed Chen Shuling, allowing Chen Shubao to get up and escape.