Yokoyama Castle

横山城

Maihara, Shiga

CastleMountain castle (yamajiro)

A mountain castle in Maihara, Shiga. Records credit Azai Nagamasa with building it in 1561.

Basic information

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Type: Castle
Setting: Mountain castle (yamajiro)built on a mountain; expect a climbWikipedia (ja)
Keep (tenshu): Not yet confirmedwhether a keep existed is still being checked
Built by: Azai NagamasaWikipedia (ja)
Built: 1561Wikipedia (ja)
Main lords: Toyotomi Hideyoshi, Azai IhiroWikipedia (ja)
Abandoned: 1573Wikipedia (ja)
Remains to see: Baileys / enclosures (kuruwa)Wikipedia (ja)

People of this castle

Built

Azai Nagamasa

浅井長政

1545–1573

Third lord of the Azai family of northern Omi. He married Oda Nobunaga's sister Oichi but later fought Nobunaga alongside the Asakura and was destroyed at Odani Castle.

Lord

Toyotomi Hideyoshi

豊臣秀吉

1537–1598

The warlord who carried on Oda Nobunaga's work and unified Japan. In 1583 he began building Osaka Castle on the site of the Osaka Hongan-ji temple.

Lord

Azai Ihiro

浅井井演

Castles nearby

Nagahama Castle6.8 km · Mock keep Kyōgoku clan ruins6.9 km · Not yet confirmed

Toragozeyama Castle8.6 km · No keep recorded

Odani Castle9 km · No keep was built Tamashiro Castle9.8 km · Not yet confirmed

Kamaha Castle10.8 km · No keep was built

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Sources

1
Wikipedia「横山城 (近江国)」Wikipedia日本語版wikipediaChecked: 2026-10-03
2
Wikidata Q10951653WikidatawikidataChecked: 2026-10-03

Listing status

Candidate foundChecked
Confirmed as a castle siteChecked
Basic informationChecked
In-depth articleUnder review
Photo rights checkedChecked
Visit info checkedUnder review

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