Haengju Ki clan

According to the 2015 South Korean census, the population of the Haengju Gi clan was 27,379.

Their founder was Gi U-sŏng [ja] who was a descendant of Jun of Gojoseon, the last king of Gija Joseon.

U-seong was the eldest son of Hun who was the 7th descendant of Jun.

U-sŏng's two younger brothers, U-ryang and U-pyŏng, became the progenitors of the Han and Sunwoo families respectively.

[1] Gi U-sŏng was Gija’s 48th generation descendant.