Queen Sado of the Park clan (Korean: 사도왕후 박씨; Hanja: 思道王后 朴氏; ?
According to Hwarang Segi: It is said that he was dethroned by his mother, Queen Sado, for refusing to marry her niece (in some accounts, sister) Mishil.
They spread a rumor that heavens has forsaken Silla for having an immoral king, thus resulted for them losing their lands against the Baekje.
Since King Jinpyeong was only 13 years old when he ascended the throne in 579, Queen Dowager Sado, served as a regent until he reached the legal age in 584.
However, Queen Sado still refused to give him full control of Silla even after he reached the legal age.