Complex sentence: According to the 12th century poem "Prithviraja Vijaya", the Kalachuris of Tripuri descended from Kartavirya, a legendary Heheya king who ruled from Mahishmati, through one Sahasikh ("courageous").
Split into simpler sentences: According to the 12th century poem "Prithviraja Vijaya", the Kalachuris of Tripuri descended from Kartavirya, a legendary Heheya king who ruled from Mahishmati. The poem states that the Kalachuris descended from him through one Sahasikh ("courageous").