Furumiya Castle

Overview

Furumiya Castle (古宮城, Furumiya-jō) is a ruined castle in the city of Shinshiro, in eastern Aichi Prefecture, Japan. It was built in 1571, the second year of the Genki era (元亀, Genki), during the Muromachi period (1336–1573). The castle is associated with Baba Nobuharu, a general serving the warlord Takeda Shingen. Nothing of the original buildings survives; the site today preserves moats and earthworks, and in 2017 it was listed among the Continued Top 100 Japanese Castles (続日本100名城, Zoku Nihon Hyaku Meijō).

History

Furumiya Castle was established in 1571 by Baba Nobuharu (馬場信春, Baba Nobuharu), one of Takeda Shingen's senior commanders. Shingen was the head of the Takeda house of Kai Province, and in the early 1570s his expansion brought Takeda forces into the lands east and south of their heartland, including this part of what is now Aichi Prefecture. A castle at Furumiya belonged to that push: a strongpoint built and held by a Takeda general rather than by a local lord.

The date places the castle in the final years of the Muromachi period, which ended in 1573. The period takes its name from the Muromachi district of Kyoto, where the Ashikaga shoguns had their seat; by the 1570s that authority had long since fragmented, and power lay with regional warlords such as Shingen, who fought one another for territory. Furumiya Castle was a product of that world of competing houses and shifting frontiers.

What Stands There Today

No buildings remain. The surviving features are earthworks and moats — the cut ditches and raised banks that formed the defensive skeleton of a Sengoku-period strongpoint. These are the elements that earned the site its place, in 2017, on the Continued Top 100 Japanese Castles list, a roster drawn up as a sequel to the original Top 100 and intended to bring attention to castles beyond the most famous ones. The designation recognises the site as a castle of note rather than as a standing monument.

The Name in Japanese

The castle's name is written 古宮城. Its reading is ふるみやじょう in kana, and its romaji is Furumiya-jō.

Broken down character by character:

• 古 — read ふる (furu) here. It means "old" or "ancient". This is the character's native Japanese reading, used when the word stands on its own rather than in a Sino-Japanese compound.
• 宮 — read みや (miya) here. It means "shrine" or "palace". In classical and place-name usage it commonly refers to a Shinto shrine, and it also appears in the names of imperial and princely residences.
• 城 — read じょう (jō) here. It means "castle". This is the standard character for a Japanese castle and appears at the end of castle names across the country.

Put together, 古宮 is Furumiya, "old shrine", and 城 marks the site as a castle. The name is a place name first and a castle name second: the fortification took the name of the ground it stood on.

Two points of pronunciation are worth noting for learners. First, the final 城 is read jō in this name. The same character can be read shiro when it stands alone as an ordinary noun meaning "castle", and gi in a few compounds; the jō reading is the one used in formal castle names. Second, the furu of 古 is a kun reading, the native Japanese pronunciation, which is why the name reads as a Japanese phrase rather than as a Sino-Japanese compound. The same 古 appears with its Sino-Japanese reading ko in words such as 古都 (こと, koto), "ancient capital".

Visiting and Context

Furumiya Castle lies in Shinshiro, a city in the Okumikawa region of Aichi Prefecture, at coordinates 34.9724° N, 137.4276° E. Shinshiro sits in mountainous country along the Toyokawa river system, and the region is known for castles of the Sengoku period, the age of warring states that ran through the sixteenth century. A visitor should expect a walk over wooded ground and earthworks rather than a rebuilt keep: the interest of the site is archaeological and topographical, in reading the shape of the defences in the land itself.

The castle's short documentary life is part of its character. Built in 1571 by a Takeda general and abandoned to ruin, it preserves the footprint of a military outpost from the last decades of the Muromachi period, when the old order in Kyoto had dissolved and power belonged to men like Baba Nobuharu and his master Shingen. For students of Japanese, the site offers a compact lesson in how castle names are formed: a place name in native Japanese readings, capped by the character 城 read jō.