Prince Shotoku (????, Shotoku Taishi, February 7, 574 – April 8, 622), also known as Prince Umayado (????, Umayado no ojî) or Prince Kamitsumiya (????, Kamitsumiya no oji), was a semi-legendary regent and a politician of the Asuka period in Japan who served under Empress Suiko.
He was the son of Emperor Yomei and his consort, Princess Anahobe no Hashihito, who was also Yomei's younger half-sister and his much older sister.
His parents were relatives of the ruling Soga clan and also he was involved in the defeat of the rival Mononobe clan.
The primary source of the life and accomplishments of Prince Shotoku comes from the Nihon Shoki.
Over successive generations, a devotional cult arose around the figure of Prince Shotoku for the protection of Japan, the Imperial Family, and for Buddhism.
Key religious figures such as Saicho, Shinran and others claimed inspiration or visions attributed to Prince Shotoku.