Tokugawa Ieharu (Japanese: 徳川 家治 20 June 1737 – 17 September 1786) was the tenth shōgun of the Tokugawa shogunate of Japan, and held office from 1760 to 1786.
His childhood name was Takechiyo (竹千代).
Ieharu died in 1786. He was given the Buddhist name Shunmyoin and buried at Kan'ei-ji.
Mother: Oko no Kata (d. 1728) later Shinshin'in
Wife: Iso no Miya Tomoko (1738–1771)
Ochiho no Kata (1737–1791) later Renkoin
Oshina no Kata (d. 1778) later Yoren-in
Chiyohime (1756–1757) by Tomoko
Manjuhime (1761–1773) (born by Tomoko but after she died adopted by Ieharu's concubine, Omaki no Kata)
Tokugawa Takechiyo later Tokugawa Iemoto (1762–1779) born by Ochiho no Kata
Tokugawa Teijiro (1762–1763) born by Oshina no Kata
Tanehime (1765–1794), daughter of Tokugawa Munetake and married Tokugawa Harutomi of Kishū Domain
Tenmei gannen (天明元年) or Tenmei 1 (1781): The new era name of Tenmei (meaning "Dawn") was created to mark the enthronement of Emperor Kōkaku. The previous era ended and the new one commenced in An'ei 11, on the 2nd day of the 4th month. According to Nihon Ōdai Ichiran, Ieharu was appointed Udaijin (Minister of the Right) of the Emperor's Kugyō, which was quite rare and considered a great favour.
Tenmei 2 (1782): Great Tenmei Famine begins.
Tenmei 2 (1782): An analysis of silver currency in China and Japan "Sin sen sen pou (Sin tchuan phou)" was presented to the emperor by Kutsuki Masatsuna (1750–1802), also known as Kutsuki Oki-no kami Minamoto-no Masatsuna, hereditary daimyō of Oki and Ōmi with holdings in Tanba and Fukuchiyama -- related note at Tenmei 7 below.
Tenmei 3 (1783): Mount Asama (浅間山, Asama-yama) erupted in Shinano, one of the old provinces of Japan (Tenmei eruption). Isaac Titsingh's published account of the Asama-yama eruption (1820) was the first of its kind in the West. The volcano's devastation makes the Great Tenmei Famine even worse.
Tenmei 4 (1784): Country-wide celebrations in honor of Kūkai (also known as Kōbō-Daishi, founder of Shingon Buddhism) who died 950 years earlier.
Tenmei 4 (1784): The son of the shōgun's chief counselor was assassinated inside Edo Castle. The comparatively young wakadoshiyori, Tanuma Yamashiro-no-kami Okitomo, was the son of the senior wakadoshiyori Tanuma Tonomo-no-kami Okitsugu. The younger Tanuma was killed in front of his father as both were returning to their litter after a meeting of the Counselors of State had broken up. The involvement of senior figures in the bakufu was suspected; however, none but the lone assassin himself, Sano Masakoto, was punished. The result was that Tanuma-initiated, liberalizing reforms within the bakufu and relaxation the strictures of sakoku were blocked.