this princess can became empress and take throne because of dowun if not she
still just forgotten princess and still in that lame palace right ? and guys everyone in palace expect FL maid choose dowun side rather than FL ( if you not remember you can look when Princess brother killed ) because of why ? because dowun is smart and genius not like FL and people in high positions in the palace know this princess can take throne because of dowun, if this princess choose BaekHan rather than dowun i belive the two will death in ending of this story, thinking again guys dowun can take down the princess and take throne for he own whenever he want ( everyone in palace choose dowun side ) And if FL sister want to take the throne, i belive FL will take dowun side again

if not she cannot beat her sister, if she choose BaekHan side she cannot take her throne again because of what ? because BaekHan not like dowun who can doing everything like manipulation and BaekHan what ? he just kind character so he cannot help FL to take her throne back
