|Emperor of Japan|
|Coronation||6 January 823|
|Enthronement||22 March 833|
|Empress||Fujiwara no Junshi, daughter of Fujiwara no Fuyutsugu|
|Era name and dates|
|Tenchō, Jōwa, Kashō: 824–834, 834–848, 848–851|
|Mother||Tachibana no Kachiko|
|Born||27 September 808|
|Died||6 May 850 (age 41)
Heian Kyō (Kyōto)
|Burial||Fukakusa no misasagi (Kyoto)|
Traditional narrative 
Ninmyō had nine Empresses, Imperial consorts, and concubines (kōi); and the emperor had 24 Imperial sons and daughters.
Emperor Ninmyō is traditionally venerated at his tomb; the Imperial Household Agency designates Fukakusa no Misasagi (深草陵?, Fukakusa Imperial Mausoleum), in Fushimi-ku, Kyoto, as the location of Ninmyō's mausoleum.
Events of Ninmyō's life 
Ninmyō ascended to the throne following the abdication of his uncle, Emperor Junna.
- 6 January 823 (Kōnin 10, 4th month, 19th day): Received the title of Crown Prince at the age of 14.
- 22 March 833 (Tenchō 10, 28th day of the 2nd month): In the 10th year of Emperor Junna's reign, the emperor abdicated; and the succession (senso) was received by his adopted son. Masara-shinnō was the natural son of Emperor Saga, and therefore would have been Junna's nephew. Shortly thereafter, Emperor Ninmyo is said to have acceded to the throne (sokui).
Shortly after Ninmyo was enthroned, he designated an heir. He named as Prince Tsunesada, a son of former Emperor Junna, as the crown prince.
- 835 (Jōwa 2): Kūkai (known posthumously as Kōbō-Daishi) died. This monk, scholar, poet, and artist had been the founder of the Shingon or "True Word" school of Buddhism.
- 842: Following a coup d'état, Tsunesada the crown prince was replaced with Ninmyō's first son, Prince Michiyasu (later Emperor Montoku) whose mother was the Empress Fujiwara no Junshi, a daughter of sadaijin Fujiwara no Fuyutsugu. It is supposed that this was the result of political intrigue planned by Ninmyō and Fujiwara no Yoshifusa. The first of what would become a powerful line of Fujiwara regents, Yoshifusa had numerous family ties to the imperial court; he was Ninmyō's brother in law (by virtue of his sister who became Ninmyō's consort), the second son of sadaijin Fuyutsugu, and uncle to the new crown prince.
- 6 May 850 (Kashō 3, 21st day of the 3rd month): Emperor Ninmyō died at the age of 41. He was sometimes posthumously referred to as "the Emperor of Fukakusa," because that was the name given to his tomb.
Eras of Ninmyō's reign 
In general, this elite group included only three to four men at a time. These were hereditary courtiers whose experience and background would have brought them to the pinnacle of a life's career. During Ninmyō's reign, this apex of the Daijō-kan included:
- Sadaijin, Fujiwara no Otsugu (藤原緒嗣), 773–843.
- Sadaijin, Minamoto no Tokiwa (源常), 812–854.
- Udaijin, Kiyohara no Natsuno (清原夏野), 782–837.
- Udaijin, Fujiwara no Mimori (藤原三守), d. 840.
- Udaijin, Minamoto no Tokiwa (源常)
- Udaijin, Tachibana no Ujikimi (橘氏公), 783–847.
- Udaijin, Fujiwara no Yoshifusa (藤原良房), 804–872.
- Udaijin, Fujiwara no Otsugu, 825–832
- Naidaijin (not appointed)
- Dainagon, Fujiwara no Otsugu, ?–825.
Consorts and children 
Nyōgo (Tai-Kōtaigō): Fujiwara no Junshi (藤原順子) (809–871), daughter of Fujiwara no Fuyutsugu (藤原冬嗣)
- Imperial Prince Michiyasu (道康親王) (Emperor Montoku) (827–858)
Nyōgo: Fujiwara no Takushi or Sawako (藤原沢子) (?–839), daughter of Fujiwara no Fusatsugu (藤原総継)
- Imperial Prince Muneyasu (宗康親王) (828–868)
- Imperial Prince Tokiyasu (時康親王) (Emperor Kōkō) (830–887)
- Imperial Prince Saneyasu (人康親王) (831–872)
- Imperial Princess Shinshi (新子内親王) (?–897)
Nyōgo: Fujiwara no Teishi/Sadako (藤原貞子) (?–864), daughter of Fujiwara no Mimori (藤原三守)
- Imperial Prince Nariyasu (成康親王) (836–853)
- Imperial Princess Shinshi (親子内親王) (?–851)
- Imperial Princess Heishi (平子内親王) (?–877)
Nyōgo: Tachibana no Kageko (橘影子) (?–864), daughter of Tachibana no Ujikimi (橘氏公)
Koui: Ki no Taneko (紀種子) (?–869), daughter of Ki no Natora (紀名虎)
- Imperial Prince Tsuneyasu (常康親王) (?–869)
- Imperial Princess Shinshi/Saneko (真子内親王) (?–870)
Koui(deposed in 845): A daughter of Mikuni clan, Mikuni-machi (三国町)
- Sada no Noboru (貞登), given the family name 'Sada' from Emperor (Shisei Kōka, 賜姓降下) in 866
Court lady: Shigeno no Tsunako (滋野縄子), daughter of Shigeno no Sadanushi (滋野貞主)
- Imperial Prince Motoyasu (本康親王) (?–902)
- Imperial Princess Tokiko (時子内親王) (?–847), 2nd Saiin in Kamo Shrine 831–833
- Imperial Princess Jūshi (柔子内親王) (?–869)
Court lady: Fujiwara no Katoko (藤原賀登子), daughter of Fujiwara no Fukutomaro (藤原福当麻呂)
- Imperial Prince Kuniyasu (国康親王) (?–898)
Court lady: Fujiwara no Warawako (藤原小童子), daughter of Fujiwara no Michitō (藤原道遠)
- Imperial Princess Shigeko (重子内親王) (?–865)
Court lady: Princess Takamune (高宗女王), daughter of Prince Okaya (岡屋王)
Court lady (Nyoju): Kudara no Yōkyō (百済永慶), daughter of Kudara no Kyōfuku (百済教復)
Court lady: A daughter of Yamaguchi clan (山口氏の娘)
- Minamoto no Satoru (源覚) (849–879)
(from unknown women)
- Minamoto no Masaru (源多) (831–888), Udaijin 882–888
- Minamoto no Suzushi (源冷) (835–890), Sangi 882–890
- Minamoto no Hikaru (源光) (846–913), Udaijin 901–913
- Minamoto no Itaru (源効)
See also 
- Emperor of Japan
- List of Emperors of Japan
- Imperial cult
- Emperor Go-Fukakusa, a later emperor named in honor of Emperor Ninmyō
- Shoku Nihon Kōki, a Japanese national history covering Emperor Ninmyō's reign.
- Spelling note: A modified Hepburn romanization system for Japanese words is used throughout Western publications in a range of languages including English. Unlike the standard system, the "n" is maintained even when followed by "homorganic consonants" (e.g., shinbun, not shimbun). In the same way that Wikipedia has not yet adopted a consensus policy to address spelling variations in English (e.g., humour, not humor), variant spellings based on place of articulation are unresolved, perhaps unresolvable – as in Emperor Ninmyō vs. Emperor Nimmyō, which are each construed as technically correct.
- Emperor Ninmyō, Fukakusa Imperial Mausoleum, Imperial Household Agency
- Ponsonby-Fane, Richard. (1959). The Imperial House of Japan, pp. 64–65.
- Brown and Ishida, pp.283–284; Varley, H. Paul. (1980). Jinnō Shōtōki, p. 164-165; Titsingh, Isaac. (1834). Annales des empereurs du Japon, pp. 106–112. at Google Books
- Brown and Ishida, p. 282; Varley, p. 164.
- Brown and Ishida, p. 283.
- Julian dates derived from NengoCalc
- Titsingh, p. 106; Brown and Ishida, pp. 283; Varley, p. 44; a distinct act of senso is unrecognized prior to Emperor Tenji; and all sovereigns except Jitō, Yōzei, Go-Toba, and Fushimi have senso and sokui in the same year until the reign of Emperor Go-Murakami.
- Brown and Ishida, pp. 284.
- Sansom, George Bailey. (1958). A History of Japan to 1334, pp. 134-135; Nussbaum, Louis-Frédéric. (2005). "Fujiwara no Tsunetsugu" in Japan Encyclopedia, p. 211.
- Mason and Caiger, p. 69
- Mason and Caiger, p. 71
- Titsingh, p. 124; Brown and Ishida, p. 289; Varley, pp. 171–175.
- Brown and Ishida, p. 284
- Adolphson, Mikael et al. (2007). Heian Japan, centers and peripheries, p. 23.
- Brown and Ishida, p. 284; Varley, p. 165.
- Titsingh, p. 106.
- Heian period Imperial courts: – kugyō of Ninmyō-tennō (in French)
- Nussbaum, Louis-Frédéric. (2005). "Fujiwara no Otsugu" in Japan Encyclopedia, p. 208 at Google Books.
- Titsingh, p. 104. at Google Books
- Saikū Historical Museum, Meiwa, Mie: wall-display information table.
- Adolphson, Mikael S., Edward Kamens and Stacie Matsumoto. (2007). Heian Japan, centers and peripheries. Honolulu: University of Hawaii Press. 10-ISBN 0-8248-3013-X; 13-ISBN 978-0-8248-3013-7
- Brown, Delmer M.; Ishida, Ichirō (1979). The Future and the Past (a translation and study of the Gukanshō, an interpretive history of Japan written in 1219). Berkeley: University of California Press. ISBN 978-0-520-03460-0. OCLC 251325323.
- Imperial Household Agency (2004). "仁明天皇 深草陵" [Emperor Ninmyō, Fukakusa Imperial Mausoleum] (in Japanese). Retrieved 2011-02-04.
- Mason, R.H.P and Caiger, J.G. (1997). A History of Japan (2nd (revised) ed.). North Clarendon, VT: Charles E. Tuttle Company. ISBN 0-8048-2097-X.
- Nussbaum, Louis-Frédéric and Käthe Roth. (2005). Japan encyclopedia. Cambridge: Harvard University Press. 10-ISBN 0-674-01753-6; 13-ISBN 978-0-674-01753-5; OCLC 58053128
- Ponsonby-Fane, Richard Arthur Brabazon. (1959). The Imperial House of Japan. Kyoto: Ponsonby Memorial Society. OCLC 194887
- Titsingh, Isaac. (1834). Nihon Odai Ichiran; ou, Annales des empereurs du Japon. Paris: Royal Asiatic Society, Oriental Translation Fund of Great Britain and Ireland. OCLC 5850691
- Varley, H. Paul. (1980). Jinnō Shōtōki: A Chronicle of Gods and Sovereigns. New York: Columbia University Press. 10-ISBN 0-231-04940-4; 13-ISBN 978-0-231-04940-5; OCLC 59145842
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