Honnō-ji Incident

The 1582 coup in which Akechi Mitsuhide attacked Oda Nobunaga at Honnō-ji in Kyoto, forcing Nobunaga to die by seppuku and reshaping Japan’s struggle for unification.

Akechi Mitsuhide: A Japanese samurai commander who rebelled against Oda Nobunaga in 1582 and briefly seized power in Kyoto. His sudden attack on Nobunaga’s Kyoto residence began the coup.
Oda Nobunaga: A Japanese warlord who sought to unite Japan through military conquest and political reform in the sixteenth century. His command structure and rapid campaigns formed the setting for Mitsuhide’s rebellion.
Tokugawa Ieyasu: A Japanese daimyo who became shogun in 1603 and founded the Tokugawa shogunate. Ieyasu survived the crisis and later emerged as the dominant power after Hideyoshi’s death.
Akechi Mitsuhide’s motives: The unresolved question of why Akechi Mitsuhide rebelled against Oda Nobunaga in 1582. Explanations range from personal grievance to strategic calculation, without a conclusive contemporary account.
Honnō-ji: A Buddhist temple in Kyoto where Oda Nobunaga was staying when Akechi Mitsuhide attacked in 1582. The temple was the site of Nobunaga’s final stand.
Sengoku period: A period of prolonged political fragmentation and warfare in Japan, conventionally dated from the mid-fifteenth to late sixteenth century. The coup unfolded amid the competition for power that Nobunaga was bringing toward an end.
Oda Nobutaka: A son of Oda Nobunaga who became a contender in the Oda succession after his father’s death. His claim became part of the conflict over who would inherit Nobunaga’s authority.
Akechi Army Chronicle: A Japanese account of Akechi Mitsuhide and his forces, compiled after the events it describes. Its later testimony contributes to the record used to reconstruct the coup and its motives.
Nijō Castle: A castle in Kyoto that became the scene of Oda Nobutada’s final resistance during the 1582 coup. Nobutada, Nobunaga’s heir, was killed there as Mitsuhide consolidated control.
Siege of Takamatsu: A 1582 siege in which Toyotomi Hideyoshi’s forces besieged the Mōri-held Takamatsu Castle in Bitchū Province. Mitsuhide was ordered to reinforce Hideyoshi during the campaign when he turned against Nobunaga.

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