Aidka
That emperor is a fool. If he made her a concubine, she would still have a high standing, but her children would not have a claim to the throne. There would be no conflict. He already had a child by that time to have succession clear, it doesn't make sense what he had done back then and now making 180-degree backing away.
Nice story >> i think the king is someone who truly not suited become king he cant even see the politic perspective. He cant even know how an empress born from minor noble can shake the country political foundation not only that he dont know how powerful empress authority is. this kind of king is just king in name only that and had his authority granted and not claimed. He can only governt a small place only. No doubt this kind of king will make kingdom fall faster than reading 300 chapter kingdom building novel