other · Korea and Japan

Koga kubo

1455 CE – 1583 CE (approx.) · capital Koga

A branch of the Ashikaga that ruled from Koga in the Kanto for over a century, fighting the Uesugi and later becoming clients of the Later Hojo.

Origins

Ashikaga Shigeuji, the restored Kamakura kubo, killed the Kanto deputy Uesugi Noritada in 1454, starting the long Kyotoku War. In 1455 he lost Kamakura and moved his base to Koga in Shimousa province, from which his line took its name. The shogun sent a rival, Ashikaga Masatomo, who became the Horigoe kubo.

Rule and society

The Koga kubo claimed authority over the eastern provinces and relied on alliances with local warrior families of the northern and eastern Kanto. Shigeuji fought the Uesugi for nearly thirty years. Later kubo, Masauji, Takamoto and Haruuji, were drawn into family feuds and the rise of the Later Hojo, who married into the line and controlled it.

Decline and legacy

The last kubo, Ashikaga Yoshiuji, was a Hojo puppet; on his death in 1583 the line ended. Toyotomi Hideyoshi later gave his daughter's family a small estate as the Kitsuregawa.

Lineage

Kamakura-fu 1349 CE – 1439 CEKoga kubo

Connections (1)

Koga kubo was a vassal of Later Hojo clan domain1538 CE – 1583 CE

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Cite this page

APA: The Epoch Institute. (2026). Koga kubo. In The Epoch Institute States Register. https://the-epoch-institute.org/state/koga-kubo
MLA: “Koga kubo.” The Epoch Institute States Register, The Epoch Institute, 2026, https://the-epoch-institute.org/state/koga-kubo. Accessed .
Chicago: The Epoch Institute. “Koga kubo.” The Epoch Institute States Register. 2026. https://the-epoch-institute.org/state/koga-kubo.
Harvard: The Epoch Institute (2026) ‘Koga kubo’, The Epoch Institute States Register. Available at: https://the-epoch-institute.org/state/koga-kubo (Accessed: ).

Last reviewed October 2026Random state ↻