Thanks for the chapter!
Princess Xiang is the 3rd prince's wife. The one who would be convenient to die if Chenyu were to marry him and become the first wife assuming Feng is somehow able to find a doctor who can restore her maidenhead. Seems according to culture that it's ok if a man sleeps around before marriage, but a girl must be a virgin to avoid shaming her husband with rumors of him being cuckolded. Especially with nobles and royalty. Xiang Has been sick for a while.
3rd prince has been slowly poisoning her for a while, possibly cheating on her too. She's been holding on through sheer will and determination to spite him. Marriage was for political convenience and since he's a prince she can't divorce him without the Emperor's permission and could be harshly punished or executed for suggesting it in public or if Emperor is enraged with the idea.
