Empress Kōken
Tenmu had many children, including his crown prince Kusakabe by Princess Unonosarara; Princess Tōchi; Prince Ōtsu and Princess Ōku by Princess Ōta (whose father also was Tenji); and Prince Toneri, the editor of the "Nihon Shoki" and father of Emperor Junnin. Through Prince Kusakabe, Tenmu had two emperors and two empresses among his descendants. Empress Kōken was the last of these imperial rulers from his lineage.