Isshi Incident

E931850

The Isshi Incident was a 645 CE coup d'état in Japan in which Prince Naka no Ōe and his allies assassinated the powerful statesman Soga no Iruka, leading to the downfall of the Soga clan and paving the way for major political reforms.

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Label Occurrences
Isshi Incident canonical 1

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Statements (48)

Predicate Object
instanceOf coup d'état
historical event
political assassination
chronology occurred in the 4th year of Taika era system predecessor
country Japan
date 645
deathToll included the killing of Soga no Iruka NERFINISHED
era Asuka period NERFINISHED
followedBy Taika Reforms NERFINISHED
hasCause conflict between imperial family and Soga clan
hasEffect abdication of Empress Kōgyoku
accession of Emperor Kōtoku
assassination of Soga no Iruka
downfall of the Soga clan
political centralization in Japan
rise of Prince Naka no Ōe
involvedGroup retainers of the Soga clan
supporters of Prince Naka no Ōe
involvedInstitution Yamato imperial court NERFINISHED
languageOfSources Classical Japanese
location Asuka period Japan NERFINISHED
Imperial court of Japan NERFINISHED
mainParticipant Empress Kōgyoku NERFINISHED
Nakatomi no Kamatari NERFINISHED
Prince Karu NERFINISHED
Prince Naka no Ōe NERFINISHED
Soga no Emishi NERFINISHED
Soga no Iruka NERFINISHED
method court assassination
palace coup
namedAfter Isshi era name
politicalContext struggle between powerful clans and imperial authority
politicalNature elite intra-court conflict
powerShift from Soga clan to imperial house and allied clans
predecessor rise of Soga clan power in 6th–7th century Japan
recordedIn Japanese historical chronicles
Nihon Shoki NERFINISHED
region Yamato polity NERFINISHED
relatedTo Nakatomi clan NERFINISHED
Soga clan NERFINISHED
Taika Reforms NERFINISHED
imperial succession in Japan
resultedIn confiscation of Soga clan property
reorganization of court offices
strengthening of ritsuryō-style state formation
significance marked the end of Soga clan dominance at court
paved the way for major political reforms in Japan
timePeriod 7th century

How these facts were elicited

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Taika Reforms followedEvent Isshi Incident