
King installed by Choe Chung-heon.
Compare Sinjong of Goryeo with another historical figure:
After deposing Myeongjong, military dictator Choe Chung-heon installed Sinjong as the new puppet king. Sinjong was a younger brother of the previous king and had no political experience, making him easily controllable.
Sinjong's reign was entirely ceremonial, with all state affairs managed by Choe Chung-heon's private military regime. The king had no authority over appointments, taxes, or military decisions.
Choe Chung-heon deposed Sinjong after only seven years, citing the king's inability to control factional strife. Sinjong was exiled and replaced by his son Huijong, further entrenching Choe control over the throne.
See how Sinjong of Goryeo stacks up against other historical figures