Just as the Gyeongju Ri clan, they claim 蘇伐都利 (Yeonweon CHOE), the village mayor of 沙梁部, one of the Silla-Yukbu at the time of establishment of Silla, as their originator.
慶州李氏と同じく、新羅建国時の新羅六部の一つ沙梁部の村長だった蘇伐都利（崔淵源）を始祖と称する。