Crown prince sado - Book Reconstitutes Secret of Prince Sado’s Death

After their death, the husband of Putri Gyeongsun their only one thousand sister named Yi Je was also killed because she was a follower of Jeong Do-jeon.

It is proved that he was pushed by Noron into appointing his younger brother, Yeonying-gun the son of Consort Sukbin who later became King Yoengjo as an heir to the throne and allow him to act as regent.

Since he was an admiral, he could control over elite troops whenever he wanted.

He consulted doctors about the disease and then reconstituted the story based on the then situation and their advice.