The Elder Andong Kim clan (구 안동 김씨, 舊 安東 金氏) was founded during the Shilla Dynasty period by prince Kim Seuk-Seung (김숙승(金叔承) as the progenitor of the clan, who was the son of Gyeongsun of Silla, the last king of Shilla.
Due to this, they were often referred to as the 'rebels' of the Korean noble family during the Goryeo Dynasty period and were also known as the Sangrak Kim clan (상락 김씨, 上洛 金氏).
When the Mongols invaded during the reign of King Gojong of the Goryeo Dynasty, Kim Bang-gyeong entered Wido in 1248 as a Byeongma Pangwan in Seobuk-myeon, where he fought against his former comrades and mercenaries who turned rogue against the kingdom during the 'Rebellion of Sambeyolcho (삼별초의 난)'.
Despite being Kublai Khan's most trusted and respected swordsman - being the first foreigner to receive the 2nd rank of noble as a warrior (문무 2품 文武) in 1276, which was a higher rank than the former emperor of Southern Song - he only showed loyalty to King Gojong, which in turn, made Kublai Khan respect him as a warrior even more so.
This led to the defeat of the shogunate army and the Shimazu clan, and forced them to retreat to Dazaifu's Water Castle (水城).
Despite the sheer outnumbered factions against the Japanese armies, who were now armed with Dutch firearms and guns due to their trades with the West, Kim Shimin led his army to multiple victories by recapturing the lost cities of Geochang County, Goseong County, South Gyeongsang, Changwon, Jinhae-gu, and Sacheon with only 1000 men.
Due to these incredulous and almost inhumane accomplishments, the Japanese army feared him, and dubbed him as a monster / ghost / phantasm named 'Mokuso Sokahn (木曽判官 もくそかん / 蝦蟇の妖術使い)'.
Although a bullet wound that Shimin received during this siege took his life 11 days after the siege ended, his myth was further solidified by the 18th century kabuki 'The Legend of Tenjiku Tokubei (天竺徳兵衛韓噺)', which depicts Tenjuku Tokubei as the son of Kim Shimin, who teaches him evil Christian magic and orders him to terrorize Japan.
[1] This is the head house of the family of Kim Yeong-su (1446-1502, pen name: Yangseodang), a civil official of the Joseon period (1392-1910).
The men’s quarters consists of an underfloor-heated room to the left and a wooden-floored hall to the right, which are separated by liftable doors and can be joined into a single space when necessary.