Ozo Yashiki

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OzoYashiki (3).JPG


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.

  • 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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Added to Jcastle 2022
Contributor ART
Admin Year Visited Viewer Contributed
Friends of JCastle
Jōkaku Hōrōki
Shiro Meguri

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