Balhae · Historical figure

Geolsa Biu

The Malgal leader who resisted Tang during the migration toward Balhae’s founding.

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Key events

Geolsa Biu leads a Malgal group fleeing Tang control. He dies fighting pursuing troops, and survivors join Dae Joyeong’s force.

His role makes visible the different groups within the foundation movement. He was a leader in his own right, not merely an unnamed follower.