Tenjin'yama Castle (Musashi)

From Jcastle.info



Tenjin'yamajō was built by Fujida Yasukuni in the first half of the 16th century. Fujida became a vassal of Hōjō Ujiyasu in 1556, and so Tenjin'yamajō became a Hōjō stronghold from that time. Uesugi Kenshin campaigned in Kantō in 1560, at which time the Fujida took the opportunity to defect to his side, but they were that same year then defeated by the Hōjō, who took possession of their castle. In 1564, Hōjō Ujikuni, the fourth son of Hōjō Ujiyasu, took Tenjin'yamajō as his residence, but he would soon relocate to Hachigatajō in 1568. Thereafter Tenjin'yamajō was retained as a supporting castle of Hachigatajō. Tenjin'yamajō was destroyed in 1590 by the forces of Toyotomi Hideyoshi in the prelude to the surrender of Odawarajō.

The faux tenshu was erected in 1970. It is now abandoned.

Visit Notes

I came to Tenjin'yamajō hunting mogi, but the site turned out to be quite interesting besides the abandoned folly, which was well because the faux reconstructed tower was far too dilapitated to safely enter. The trenches at the site were interesting, and, in addition to multiple baileys, I identified dorui (earthen ramparts) and even found a segment of ishigaki (stone-piled ramparts) above a tatebori (climbing moat).

  • Dead Mogi

Castle Profile
English Name Tenjin'yama Castle (Musashi)
Japanese Name 武蔵天神山城
Founder Fujida Yasukuni (Shigetoshi)
Year Founded 1530s-1550s
Castle Type Mountaintop
Castle Condition Reconstructed main keep
Historical Period Pre Edo Period
Main Keep Structure Two Tiers, Two Storyes (Faux Recon.)
Year Reconstructed 1970
Artifacts Kuruwa, Horikiri, Karabori, Ishigaki, Mogi-Tenshu
Features trenches, stone walls
Visitor Information
Access Higuchi Station on the Chichibu Railway; 30 minute walk to trailhead at the White Bird Shrine; 10 minute hike
Visitor Information Free; 24/7; Mountain
Time Required 80 minutes
Location Nagatoro, Saitama Prefecture
Coordinates 36° 7' 12.65" N, 139° 7' 1.60" E
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Added to Jcastle 2021
Contributor ART
Admin Year Visited Viewer Contributed

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