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, without success, seized, counterattacked, and killed Gogugwon in battle at Pyongyang Castle. This was the only ruler of Goguryeo to die on a battlefield.