I want to find an ancient novel about the female protagonist's identity changing after she was killed. It would be best if it was set in the palace.

Hehe, I recommend 'Vengeance Princess, Take This.' The female protagonist was reborn after being killed in the court struggle. After changing her identity, she began to take revenge. No one found out her true identity, and she also grew up in a harsh environment. Although this ancient text had elements of revenge, it also contained sweet emotions. It closely combined the tense plot with sweet emotions. I hope you like my recommendation.😗