Who am I?'s feed

So i remember i read it a while ago and the story was a bit meh so i didn't saved it but now i am curious to know what happened for i can't recall its name or find it anywhere
Soo is a historical transmigration straight manhwa
And the girl had black hair and the story goes like the original girl hated her husband and wanted to divorce him real bad and thw new girl who possessed her body remember she dies because of this
So she tries to be nice to the duke and etc etc
Help me find it its giving me a headache