Without success,  Geunchogo's son Geungusu overtook, counterattacked and killed Gogugwon in battle, at Pyongyang Castle, the only ruler of Goguryeo to die on a battlefield.
Geungusu failed to seize, counterattack, and kill Gogugwon during their battle at Pyongyang Castle. This was the sole ruler of Goguryeo who met his demise in combat.