PersonAD 830

King Seon (Dae In-su)

Balhae's tenth king, who subdued most of the Malgal, reached Liaodong and organized five capitals, 15 prefectures and 62 districts; Balhae was then called the Flourishing Land in the East

A fourth-generation descendant of Dae Ya-bal, Dae Jo-yeong’s younger brother, he used the era name Geonheung. To the south he made the Ni River the border with Silla. He sent governors to the prefectures, prefects to the districts and magistrates to the counties, while Malgal villages were left to their own chiefs. The central army had ten guards.

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AD 818 – AD 830King Seon and the “Flourishing Land in the East”monarch
King Seon subdued most of the Malgal and pushed into Liaodong, giving Balhae its greatest extent, and organized five capitals, 15 prefectures and 62 districts; Tang called Balhae the Flourishing Land in the East.

Themes this person appears in

Local Administration Through the AgesAD 250 – 1896
From the five regions of the Three Kingdoms through nine provinces, the five circuits and two frontiers and the eight provinces to the thirteen — how directly the centre came to rule the regions
Military Systems Through the AgesAD 685 – 1907
From the Nine Oath Banners to the Two Armies and Six Guards, the Five Commands and garrison system, the Five Army Camps and the Board of Marshals — armies rebuilt at every crisis