Seon of Balhae
King
Dae Insu, also known as King Seon was the 10th king of the kingdom of Balhae. He restored national strength, and is remembered today as the last of the great Balhae rulers before its fall. Wikipedia
Died: 830 AD
Descendants: Dachanghui, Dae Ijin, Dae Geonhwang, and more
Grandchildren: Dae Ijin and Dae Geonhwang
Great grandchildren: Dachanghui and 大明俊
Full name: Dae Insu