【歴史じっくり紀行】OSHIRO vol.90 江間氏下館跡 岐阜県飛騨市にある中世地方武士の城館跡を訪れた!! 室町時代の庭園が復元された国名勝・江馬氏館跡庭園探訪【お城巡り】【日本観光】
Hello everyone. Welcome to the Sengoku Exploration Channel, OSHIRO. Today, we’ll be taking you to the remains of the Ema clan residence, located in Kamioka Town in northern Hida. These are the remains of the residence of the Ema clan, a local lord whose name revered the mountains of Hida during the Sengoku period. Deep in the mountains of Hida , surrounded by rugged mountains and valleys, Hida was difficult for the Sengoku lords from the central region to influence. In this region, local powerful clans known as kunishū established their own independent rule. Among the most powerful were the Miki clan of southern Hida, the Anekōji clan who ruled the central region, and the Ema clan, who held sway in northern Hida. The Ema clan was based in Kamioka, a city blessed with abundant mineral resources. Their base was the Ema residence in Kamioka. They were a Sengoku lord who firmly established themselves in northern Hida , building subsidiary castles such as Hora Castle, Onishiro Castle, and Tengen Castle . Now, here’s a sudden question: 📜 [Quiz!] The remains of the Ema clan’s mansion were actually a secondary castle. Which of the following castles was that? 1. Kamioka Castle 2. Takahara Suwa Castle 3. Matsukura Castle 4. Takayama Castle The correct answer is number 2, Takahara Suwa Castle! Takahara Suwa Castle was a mountain castle that the Ema clan used as a base for controlling northern Hida. However, the head of the clan, Ema Terumori, was killed in battle against Miki Yoritsuna of southern Hida. Shortly thereafter , Takahara Suwa Castle, which had been left weakly defended by heavy snowfall, was attacked by forces of the Miki clan and ultimately fell. Thus, the Ema clan was destroyed. Now, let’s head to the town of Kamioka, where the story takes place. Kamioka Town once flourished as a mining town. Zinc, lead, and silver were mined here, and the neutrino observatory, Kamiokande, is now located on the site of a former mine. The Ema clan ruled Kamioka during the late Muromachi period, during the Sengoku period. This time, we’ll visit the site of their mansion: the ruins of the Ema clan’s Shimodate. However, there’s something a little mysterious about it… The builder and date of Shimodate are unknown. Even their headquarters, Takahara Suwa Castle, remains a mystery, with no idea who built it or when. Shimodate was built at the western foot of Takahara Suwa Castle and is believed to have served as the Ema clan’s residence. The Ema clan built numerous subsidiary castles in the region, including Hora Castle, Anjo Castle, Higashimachi Castle, Terabayashi Castle, Masamoto Castle, Onishiro Castle, Shiritaka Castle, Tengen Castle, and Hongo Castle, expanding their influence throughout the Takahara district. [What kind of clan was the Ema clan? So, what kind of clan was the Ema clan? Their origins are shrouded in mystery. Some say they descended from the Taira clan, others from the Hojo clan, and others are local vassals from Izu who migrated there. One legend goes that Ema Terutsune, the illegitimate son of Taira no Tsunemori, was raised by Hojo Tokimasa and exiled to Hida after becoming embroiled in political strife. Speaking of Taira no Tsunemori, he was also the brother of Taira no Kiyomori. In other words, the Ema clan’s lineage may date back to the Genpei period . The Ema clan eventually gained power in Hida, and during the Sengoku period, they expanded their influence through repeated alliances and conflicts with the Takeda clan of Kai and the Uesugi clan of Echigo . By the time Oda Nobunaga was killed at Honnoji Temple in 1582, they had grown into a daimyo controlling northern Hida. However, they were defeated in a struggle for supremacy by the Miki clan, who ruled southern Hida, and their head, Ema Terutsune, was killed in battle. Their base, Takahara Suwa Castle, also fell, and the Ema clan was wiped out. It is unknown what became of Ema Shimodate after that, but it is said that the gardens fell into disrepair and shrines and temples were built on the hill where the castle once stood. The history of the Ema clan, buried in the mountains of Hida – traces of it may still remain, quietly, in a corner of Kamioka Town. [The struggle for supremacy between the Miki and Ema clans, and its aftermath] This battle took place in 1582, the same year as the Honnoji Incident, during the turbulent Warring States period. The Miki clan defeated the Ema clan and advanced into northern Hida. It seemed as though hegemony over the entire Hida province would finally be theirs. However, the Warring States period is merciless, and a new powerful enemy appeared. That man was Kanamori Nagachika. Invading Hida in 1585 under the orders of Toyotomi Hideyoshi, Nagachika first killed Hida’s guardian, Anenokoji Yoritsuna, and then forced the Miki clan to surrender, finally taking control of the entire Hida province. Thus, the local lords who had supported Hida gradually disappeared from the stage of history, and Hida came under the rule of the Kanamori clan. Nagachika built Takayama Castle and ruled Hida under the Toyotomi government, later becoming the lord of the Takayama domain during the Edo period. Eventually , Hida became a territory directly controlled by the shogunate, and during the Edo period, artisans known as Hida Takumi (master craftsmen) began to demonstrate their skills throughout the country. Now, the Ema clan residence ruins, which we visited again, are now open to the public as a beautifully maintained castle ruins park. The original buildings and gardens have been recreated, and the meeting hall, which was the center of the residence, as well as the magnificent gates and walls, have also been restored, giving a very good idea of what the residence looked like during the Sengoku period. And best of all, you can even tour the interior of the building! Stepping inside will make you feel as if you’ve traveled back in time to the Sengoku period – a space that history buffs will love. Why not visit and experience the history of the Ema clan for yourself? Thank you very much for watching until the end! If you found this video interesting or helpful, please subscribe to the channel and click the like button! Your support will help us produce our next video! In the next episode, OSHIRO will finally head to Kamioka Castle in Gifu Prefecture. Please look forward to the next episode! Until then, we’ll see you again!
岐阜県飛騨市にある中世地方武士の城館跡を訪れた!! 江馬氏下館跡庭園（江馬氏城館跡公園）の魅力をたっぷり紹介します！
この動画では、14〜16世紀に北飛騨を治めていた武将・江馬氏の「下館跡」と国の名勝・江馬氏館跡庭園を訪ねます。1970年代に始まった発掘調査で遺構が発見され、会所（館屋）、主門、土塀、庭園などが実物大で復元されました。中でも五ヶ石伝説にまつわる庭石や、会所から眺める飛騨の山々と庭園の借景は圧巻です
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• 📍 基本情報【２０２５年７月】
• 住所：岐阜県飛騨市神岡町殿 573 1
🚗 交通アクセス & 駐車場
【車】
o 東海北陸道 飛騨清見ICから約60〜80分、北陸道 富山ICから約90分
o 駐車場は道の駅スカイドーム神岡を利用（無料・111台分）、下館跡公園までは徒歩4〜5分（約350〜200 m）
【公共交通】
o JR飛騨古川駅から車で約30分。
o 濃飛バス利用 → 「道の駅スカイドーム神岡」下車後徒歩5分程度 ________________________________________
🎁 見どころ & ちょっとした豆知識
• 全国でも珍しい、中世武家館の会所と庭園のセット復元となる施設はここだけ！
• 五ヶ石伝説：長年伝承されていた庭石が発掘でそのまま遺構として確認されました
• 会所からの眺望：当時の殿様が見たであろう飛騨山並みと庭の借景を体感できます
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✅ こんな方におすすめ
• 歴史・城跡・古民家に興味がある方
• 日本庭園や伝承文化に惹かれる方
• 中世の武家文化に触れてみたい方
• 飛騨地域の自然と歴史を楽しみたい方
（※冬季休園・移動は徒歩メインですので歩きやすい服装をおすすめします）
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OSHIRO（オシロ）
幼少より歴史に魅せられ、学生時代は東洋史を専攻。中国史の三国時代、特に「淮南三叛」について研究。
現在は、日本全国の城跡を実際に巡り、その魅力を歴史的背景とともに動画で発信中。
「地図に残らない物語を、動画で残す」をモットーに活動しています。
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次の歴史旅でまたお会いしましょう！