 It was established during King Beophung's 18th year as a king (531) and survived until the end of Silla.The "Sangdaedeung" was chosen from among those men of "true bone" (jingeol) lineage in Silla's strict aristocratic social order.He presided over the Hwabaek Council (화백, 和白), an advisory and decision–making committee composed of other high–ranking officials holding the office of "Daedeung" (대등, 大等).