Complex sentence: According to the, Takano no Niigasa, background of the naturalized clansmen, was a 10th-generation descendant of King Muryeong of Baekje who was chosen as a concubine for Emperor Kōnin and subsequently became the mother of Emperor Kammu.
Split into simpler sentences: According to the, Takano no Niigasa came from a background of the naturalized clansmen and was a 10th-generation descendant of King Muryeong of Baekje. She was chosen as a concubine for Emperor Kōnin and subsequently became the mother of Emperor Kammu.