Complex sentence: According to the Hwarang Segi, she was the daughter of Lord Mijinbu, with her father's mother being the Princess Samyeop, daughter of King Beopheung.
Split into simpler sentences: According to the Hwarang Segi, she was the daughter of Lord Mijinbu. Her father's mother was the Princess Samyeop, daughter of King Beopheung.