Princess Tōchi was a Japanese imperial princess during the Asuka period who was Empress of Japan as the wife of her cousin Emperor Kōbun. Her name Tōchi is derived from the Tōchi district, a neighbourhood located a few miles north of Asuka. Princess Tōchi was daughter of Emperor Tenmu and Princess Nukata. She married Prince Ōtomo, who became Emperor Kōbun. They lived in the capital of Ōtsu in the Ōmi Province. He succeeded after his father, Emperor Tenji, died. She subsequently was consort until Emperor Kōbun was killed by her father in the Jinshin War.
