Gongju > Kongju Ch'ungch'ong-namdo Korea, South

Gongju becomes the capital of Baekje, and is threatened by Goguryeo, which conquers the Han River valley.

…Gongju.

He has named his country Jang-an, taking the era name Gyeong-un.

The royal faction, after a month's fighting, is in 822 able to regain much of the territory that Kim Heon-chang's forces had taken.

After the fall of Gongju, which had been the center of the rebellion, Kim Heon-chang takes his own life.

...Chungcheong provinces, ...