Bojong was born in CE 580 at Seorabeol, capital city of Silla Kingdom in the reign of King Jinheung. Bojong was the only son of Lord Seolwon and Lady Mishil. He was talented in martial arts. Then he became Hwarang at 15 years old and served his mother, Lady Mishil. He became Gukseon, the Hwarang Leader, in CE 616 replacing Kim Yushin.
- Samguk Yusa: Legends and History of the Three Kingdoms of Ancient Korea, translated by Tae-Hung Ha and Grafton K. Mintz. Yonsei University Press: Seoul, Korea. ISBN 1-59654-348-5