During King Huanhui's reign, Han Fei submitted numerous proposals to enact Legalism.
[1][4] To broker peace, King Huanhui ceded Shangdang Commandery to Qin.
The people of Shangdang refused to be ruled by Qin but also lacked the military strength for defense.
Shangdang's governor-general Feng Ting (馮亭) surrendered instead to the Zhao state.
[4] King Huanhui died in 239 BC and was succeeded by his son, Han An.