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Monmu

683 – 707

Emperor of Japan

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About Monmu

Lived 683 – 707 (aged 23–24). Monmu was a Japanese sovereign.

was the 42nd emperor of Japan, according to the traditional order of succession.

Monmu's reign spanned the years from 697 through 707.

Traditional narrative Before his ascension to the Chrysanthemum Throne, his personal name (imina) was Karu-shinnō.

He was a grandson of Emperor Tenmu and Empress Jitō. He was the second son of Prince Kusakabe. Monmu's mother was Princess Abe, a daughter of Emperor Tenji. Monmu's mother would later accede to the throne herself, and she would be known as Empress Genmei.

Events of Monmu's life Karu-shinnō was only six years old when his father, Crown Prince Kusakabe, died.

697: In the 10th year of Jitō-tennōs reign (持統天皇十年), the empress abdicated; and the succession (senso) was received by a grandson of Emperor Tenmu. Shortly thereafter, Emperor Monmu is said to have acceded to the throne (sokui).

Emperor Monmu ruled until his death in 707, at which point he was succeeded by his mother, Empress Genmei, who was also his first cousin once removed and his first cousin twice removed. He left a young son by Fujiwara no Miyako, a daughter of Fujiwara no Fuhito: Obito no miko (Prince Obito), who eventually became Emperor Shōmu.

Emperor Monmu's reign lasted 10 years. He died at the age of 25.

The actual site of Monmu's grave is known.

Kugyō is a collective term for the very few most powerful men attached to the court of the Emperor of Japan in pre-Meiji eras.

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 Monmu's reign, this apex of the Daijō-kan included: Daijō-daijin, Osakabe-shinnō. Dainagon, Fujiwara Fuhito.

Eras of Monmu's reign Conventional modern scholarship seems to have determined that the years of Monmu's reign are encompassed within more than one era name or nengō. Taihō (era) (701–704) Keiun (704–708)

Non-nengō period The initial years of Monmu's reign are not linked by scholars to any era or nengō. The Taika era innovation of naming time periods – nengō – languished until Monmu reasserted an imperial right by proclaiming the commencement of Taihō in 701. See Japanese era name – "Non-nengo periods" See Monmu period (697–701).

In this context, Brown and Ishida's translation of Gukanshō offers an explanation about the years of Empress Jitō's reign which muddies a sense of easy clarity in the pre-Taiho time-frame: "The eras that fell in this reign were: (1) the remaining seven years of Shuchō [(686+7=692?)]; and (2) Taika, which was four years long [695–698]. (The first year of this era was kinoto-hitsuji .) ... In the third year of the Taka era , Empress Jitō yielded the throne to the Crown Prince."

Consorts and children Bunin: Fujiwara no Miyako (藤原宮子, d. 754), Fujiwara no Fuhito’s daughter First Son: Prince Obito (首皇子) later Emperor Shōmu

Hin: Ki no Kamado-no-iratsume (紀竃門娘)

Hin: Ishikawa no Tone-no-iratsume (石川刀子娘) Takamado Hironari (Hiroyo)

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Important facts

Born
683
Birth century
Occupation
Nationality
Positions held
Emperor of Japan
Also known as
Emperor Mommu, Emperor Monmu, Monmu-tennō, Mommu

Family & relationships

Child
Emperor Shōmu
Parent
Empress Genmei
Parent
Prince Kusakabe

People in Monmu's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Monmu's

Frequently asked questions

Who was Monmu?

Emperor of Japan

When was Monmu born?

Monmu was born in 683.

When did Monmu die?

Monmu died on 18 July 707 in Fujiwara Palace.

What was Monmu's occupation?

Monmu was a sovereign.

What nationality was Monmu?

Monmu was Japanese.

Sources & further reading

· Wikipedia: Monmu

· Wikidata: Q357246

· DBpedia: Emperor Monmu

Cite this page

APA: Biography.guide. (2026). Monmu. https://biography.guide/monmu/

MLA: "Monmu." Biography.guide, https://biography.guide/monmu/.

Chicago: "Monmu." Biography.guide. https://biography.guide/monmu/.

Data last updated: 2026-09-21 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

Page generated 2026-09-27 04:59 UTC