Empress Jitō
Tenmu was the youngest son of Emperor Jomei and Empress Kōgyoku, and the younger brother of the Emperor Tenji. His name at birth was Prince Ōama (大海人皇子:Ōama no ōji). He was succeeded by Empress Jitō, who was both his niece and his wife. During the reign of his elder brother, Emperor Tenji, Tenmu was forced to marry several of Tenji's daughters because Tenji thought those marriages would help to strengthen political ties between the two brothers. The nieces he married included Princess Unonosarara, today known as Empress Jitō, and Princess Ōta. Tenmu also had other consorts whose fathers were influential courtiers.