King Seondeok of Silla

Prior to that, he served as a Sangdaedeung to King Hyegong of Silla.

He married Lady Gujok, the daughter of gakgan Kim Yang-pum.

Seondeok served under King Hyegong in the position of sangdaedeung.

In 780, ichan Kim ji-Jeong, led a rebellion against King Hyegong.

However, the rebel forces succeeded in storming the palace and killed King Hyegong and his Queen.