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Emperor Tenmu

631–686 CE · Emperor of Japan · Asuka

The emperor who seized the throne in the Jinshin War and advanced the ritsuryo state and the compilation of histories.

Life

Retreat to Yoshino

Emperor Tenmu, originally Prince Oama, was the younger brother of Emperor Tenji. In his later years Tenji wanted to pass the throne to his son Prince Otomo, so Oama became a monk and retired to Yoshino.

Jinshin War

After Tenji died in 672 CE, he rose in revolt at Yoshino and defeated Prince Otomo, an event known as the "Jinshin War"; the following year he took the throne at Asuka. He relied on members of the imperial family, weakened the powerful clans, instituted the system of eight hereditary ranks (yakusa no kabane), and advanced the ritsuryo system; according to the records, the title "tenno" (emperor) and the country name "Japan" came into use in his time.

Ritsuryo codes

He ordered the compilation of a national history, which later became the Kojiki and the Nihon Shoki. He died in 686 CE, and his empress succeeded him as Empress Jito.

Legacy

Emperor Tenmu strengthened the power of the emperor and laid the foundations of Japan's ancient ritsuryo state.

Did you know? His empress, Princess Uno-no-sarara, succeeded to the throne as Empress Jito and completed the building of Fujiwara-kyo.

Key dates

See the world in 673 on the map →

Contemporaries

Battles during their lifetime