 Chinu was a son of Prince Oshisaka hikohito no ōe, whose father was the Emperor Bidatsu.He had at least three consorts including his Empress, Hashihito no Himemiko (Princess Hashihito), the daughter of Emperor Jomei and his sister Empress Kōgyoku.In the 3rd year of Kōgyoku"-tennō" 's reign (皇極天皇三年), the empress abdicated; and the succession ("senso") was received by her younger brother.