When the new emperor ascended the throne, Gongsun Jing, the daughter of the prime minister, the head of the civil service, was named queen, and Shen Liyou, the daughter of Duke Zhenguo, who held military power and guarded the border, was named a noble concubine. These two people were incompatible with each other in the harem.
The Emperor: "What? Last night I went to the imperial concubine's palace and the queen danced all night. What? The night before, I was in the imperial concubine's palace and the imperial concubine practiced swordplay all night."
Narcissistic Emperor: "They both love me so much. No matter whose palace I go to, the other one can't sleep. Alas! It would be great if I could be separated."