Ozo Yashiki

History

In the Kamakura period the fourth and fifth sons of Kagami Tômitsu, the great grandson of Minamoto Yoshimitsu who established the Kai-Minamoto Clan, took the name Ozo (the Ozo were originally a clan from Yamanashi District originating with the Saigusa Clan; later they merged with the Kagami Clan when their power waned after a dispute over territory in Yatsushiro District). The Ozo Clan founded Ozo-yashiki in the Kamakura period. In the Sengoku period the Itagaki Clan, which had merged with the Ozo Clan, took over the yashiki, referring to it as Ozo Palace.

Visit Notes

Ozo-yashiki is a fortified residence ruin featuring the remains of a double moat system. The largest ruins are the dorui (earthen ramparts) and karabori (dry moat) system which run around much of the site. These are most prominent to the south and east where the ruins are maintained as a park. However, the site is partially occupied by housing. The earthworks continue in the west but here they are overgrown with trees and bamboo. To the north there can be clearly seen two rows of dorui, and these mounds are the remains of a two layered system of dorui and karabori which went around the whole residence in a square formation. Tall double dorui can be glimpsed through the overgrowth in the northwest, but this section is on private property. Ozo-yashiki is a small but intriguing earthworks ruin near Enzan Station.

Gallery

Dorui, Karabori

Castle Profile
English Name	Ozo Yashiki
Japanese Name	於曾屋敷
Founder	Ozo Clan
Year Founded	Kamakura Period
Castle Type	Flatland
Castle Condition	Ruins only
Designations	Prefectural Historic Site
Historical Period	Pre Edo Period
Artifacts	Karabori, Dorui, Kuruwa
Features	trenches
Visitor Information
Access	Enzan Station on the Chūō Main Line; 3 minute walk
Visitor Information	24/7 free; park
Time Required	30 minutes
Location	Kōshū, Yamanashi Prefecture
Coordinates	35° 42' 9.58" N, 138° 43' 56.82" E
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Admin
Added to Jcastle	2022
Contributor	ART
Admin Year Visited	Viewer Contributed
Friends of JCastle
Yogo
Jōkaku Hōrōki
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Shiro Meguri

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