The Crowned Clown (2019)

Other name: 왕이 된 남자 광해, 왕이 된 남자 成為王的男人 Wangi doin namja Wangyidoen Namja wang-i doin nam-ja Gwanghae, Wangyidoen Namja Wangyi Doen Namja Masquerade Gwanghae, The Man Who Became King Man Who Became King The Man Who Became King Gwang-hae, The Man Who Became King

Synopsis: :
Because of uprisings and a power struggle surrounding King Lee Hun, Joseon is in a state of disorder. To avoid assassination, a clown named Ha Sun (who looks almost identical to King Lee Hun) is brought to the palace to take the King’s place.
This drama show a love triangle between the king, the clown, and the queen. A love that transcends class and the law.