Great Horitonso Wars

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The Great Horitonso Wars was a conflict between the Kawamoto clan and the Yorimoto clan during the years 1547-1564. The war ended in victory for the Kawamoto clan and the acknowledgment of the Kawamoto claim to the Horitonso Castle in Kyoto.

For years the Kawamoto clan and the Yorimoto clan have had conflict between each other. The uneasy peace that they had enjoyed was strained in 1547 when the Yorimoto clan led by Yorimoto Kasamuti laid a 5 month seige at the Kawamoto Castle in Edo, present day Tokyo, where they forcefully withdrew Kawamoto Takuya, the newly dubbed daimyo of the Kawamoto clan, from the region.

Kawamoto Takuya traveled to Heian, present day Kyoto, where he summoned for the help of the Great Horitonso, the most powerful samurai of the land, to destory the Yorimoto clan and regain his family's honor and land. The Great Horitonso accepted his offer and gave him the rights to his Kozono army. Takuya led the Great Horitonso's army to many victories, especially in the 1560 Battle of Xanadu River.

By 1564, Takuya owned most of Japanese mainland and forced Yorimoto Kasamuti to commit seppuku. The Great Horitonso was given the city of Sapporo and its surrounding area. The Yorimoto clan disappeared from history after this event. The Emperor then gave Kawamoto Takuya the title of Shogun in 1566 for his heroic actions in the war.