Their Bon-gwan is in Iksan, North Jeolla Province.
According to the research held in 2015, the number of Hamyeol Namgung clan was 20715.
Namgung su (Hanja: 南宮修) who was the Imperial family in Zhou dynasty, China started Korean Namgung clan.
Namgung su (Hanja: 南宮修) taught Koreans etiquette, agriculture, rice farming, sericulture and weaving.
Namgung Won cheong [ja] worked as Four-star rank and Pingzhangshi (Hanja: 平章事) in Goryeo.