Kim Yu-sin
Silla general of Geumgwan Gaya royal descent who defeated Gyebaek and led the unification wars
A great-grandson of King Guhae of Geumgwan Gaya, he was the grandson of Kim Mu-ryeok, the general who brought about King Seong’s death at Gwansan Fortress. He began as a hwarang, and his sister Munhui married Kim Chun-chu, binding the two men together. He crushed Bidam’s revolt in 647 and helped Kim Chun-chu to the throne in 654. In 660 he led 50,000 troops over Tanhyeon Pass, defeated Gyebaek’s picked men at Hwangsanbeol and took Sabi with the Tang army. After Goguryeo fell in 668 he was given the highest rank, taedaegakgan. Under King Heungdeok he was posthumously titled Great King Heungmu.