Who dated Jinpyeong of Silla?

Jinpyeong (Korean: 진평; 567? – 632, reign 579 – 632) was the 26th king of Silla, one of the Three Kingdoms of Korea. King Jinpyeong followed in the footsteps of his predecessor, King Jinji, by reorganizing the central ruling system of Silla. Upon the onset of a multitude of conflicts between Baekje and Goguryeo, he sent emissaries to improve relations and strengthen ties between Silla and the Chinese dynasties Sui and Tang. He is also known for his promotion of Buddhism as a spiritual guide for the kingdom and encouraging Buddhist teachings. His 54 year long reign is the longest in Silla's history.

Misil (Korean: 미실; Hanja: 美室; c. 546/548 – c. 612) was a Silla aristocrat whose historical existence is debatable. According to the Hwarang Segi, she was a concubine to several kings and, along with her aunt Queen Sado, played an instrumental role in dethroning King Jinji. However, it has been questioned whether Misil was truly a historical figure, as she is only mentioned in the Hwarang Segi, and not in the historical texts Samguk sagi or Samguk yusa.