Dong Yi S01E56 - Prince Yeoning's Marriage

Dong Yi is shocked to hear that but manages to get the permission to choose her son's bride. She refuses all the candidates from Disciples' Faction family. In the end, she chooses a scholar that has no power in politics. But, the home of the scholar has 'wang gi' royal energy, in which previous Kings have stayed or live there. It also means that the prince will get some support from the public that he should also become a king. In the meantime, Cheon Soo find out that Jang Moo Yeol have been doing some illegal things. Then, the wedding of Prince Yeoning and his bride goes ahead as planned.