"Place names with 'to' in them" from 1 to 9 [Yonohe Edition] Where was the legendary Yonohe? Explore the mysterious Yonohe!

The only place name with "to" in it that no longer exists is " Shinohe ," and although there are various theories as to why the location and place name have not survived, none can be said to be the established theory.

However, it has been confirmed that the Shinohe clan, a branch of the Nanbu clan, actually existed, and it is believed that there is no doubt that the place name Shinohe was located somewhere in the vast Nukanobu District

Place names with "to"
Place names with "to" remaining today Source: Google Map

In this article, we will introduce the most likely theory among the various theories surrounding Shito as to where it was located


The Shitohe clan, a branch of the Nanbu clan

Mitsuyuki Nanbu
Nanbu Mitsuyuki, the founder of the Nanbu clan in Oshu (Owned by Morioka City Central Community Center) Source: Wikipedia

It is said that the family name Shinohe originated when Munekiyo, the fifth son of Nanbu Mitsuyuki, the founder of the Nanbu clan, who moved from Kai to Oshu, was given Shinohe as his territory and took the name Shinohe .

The branch families of the Shinohe clan include the Takeda clan, Kindaichi clan, Kushibiki clan, Nakano clan, and Nukazuka clan, and the castles that these branch families used as their residences came to be called Shinohe Castles in various places

It is thought that this is why there were "four households" scattered throughout Nukabe County


Where is the location of "Yonhe" as suggested by local documents?

Yoto
The area known as "Yonohe" Source: Google Map

Based on local historical documents remaining to this day, the Mabechi River were Shinohe.

Iwate Prefecture History compiled by Iwate Prefecture , states that the Shinohe district bestowed upon Munekiyo was located in Ninohe County, and that Kindaichi was said to be the location. The candidate locations are widely scattered throughout the territory of the Nanbu clan, as listed below.

The theory that it is the Asamizu River basin that flows through Gonohe Town

Asamizu Hachiman Shrine
Asamizu Hachiman Shrine (the remains of Asamizu Castle) is located on a hill overlooking the road and the Asamizu village

The Asamizu River is a tributary of the Mabechi River, and flows from west to east between the towns of Sannohe and Gonohe.

Asamizu in particular is said to have been a small post town along the highway, and there are records that state that Nanbu Munekiyo, the ancestor of the Shinohe clan, was the first to live in this area, making it a likely candidate for Shinohe

Asamizu Hachiman Shrine
The approach to Hachiman Shrine from a road barely wide enough for a light vehicle to pass through 

Additionally, Asamizu is a strategic transportation hub bordering Sannohe to the south, Hachinohe to the east, and Gonohe to the north, and the theory that it was likely used as a defensive base for Sannohe is also one of the reasons for the theory that Asamizu is Yonnohe

Nozawa Castle Ruins
Nozawa Castle ruins This castle ruin is also a candidate for Shinohe Castle

In the Asamizu River basin, from west to west, Asamizu , Shidogishi , and Nozawa , which are considered as possible locations for Shinohe, and there is a theory that the castle ruins remaining in Asamizu and Nozawa may be the remains of Shinohe Castle.

Asamizu Castle Ruins <Information>

  • Facility name: Asamizu Castle Ruins (Hachiman Shrine)
  • Address: 70 Asamizu, Gonohe-cho, Sannohe-gun, Aomori Prefecture

GOOGLE MAP


Nozawa Castle Ruins <Information>

  • Facility name: Nozawa Castle Ruins
  • Location: Ogita, Gonohe-machi, Sannohe-gun, Aomori Prefecture

GOOGLE MAP


Theory that it is near Kushibiki in Hachinohe City

Kushihiki Hachiman Shrine
Kushibiki Hachiman Shrine Source: Amazing AOMORI (Aomori Prefecture Tourism Information Site)

Kushibiki Hachiman Shrine is Shinohe Hachiman Shrine , one theory is that the area from the area around Hachiman Shrine to present-day Nanbu-cho was Shinohe, and that the Kushibiki clan, lords of Kushibiki Castle, ruled the area.

Kushibiki who had a vast territory stretching from Hachinohe City to Gonohe Town and Ninohe City in Iwate Prefecture , fought back against Toyotomi Hideyoshi in the Kunohe Rebellion and was defeated, his territory was taken away and the four houses of Ninohe disappeared.

This theory has been advocated by Mr. Takijiri, a curator at the Hachinohe City Library in Iwate Prefecture, and was broadcast by NHK Aomori Broadcasting Station on October 20, 2023, and was also featured in a special web feature on the station

According to this theory, the Kushibiki clan is considered to be the "Lord of the Four Houses," , such a description can be found in the Ounan

However, other historical documents suggest that the Kushibiki clan was likely a branch of the Shinohe clan, and some even state that they served the Sannohe Nanbu clan and had a fief of around 2,000 koku

Kunohe Castle ruins
The ruins of Kunohe Castle, where Kushibiki Kiyonaga fought on the side of Kunohe Masazane. View of the Honmaru from the Ninomaru main gate

This theory also states that Kushibiki Kiyonaga's territory of Shinohe was "divided between Hachinohe and Sannohe after the rebellion, causing Shinohe to disappear," but the Negishi Nanbu clan, who ruled Hachinohe at the time, were vassals of the Sannohe Nanbu clan

Therefore, it is considered legitimate to assume that all of the Kushibiki clan's territories were given to the Sannohe Nanbu clan, and for these reasons, there seem to be many voices that question this theory

Kushibiki Castle Ruins <Information>

  • Facility name: Kushibiki Castle Ruins
  • Location: Kushibikikanjin, Hachinohe City, Aomori Prefecture

GOOGLE MAP


One theory is that it was located in Kindaichi in the northern part of Ninohe City

Yasaka Shrine is located just before the ruins of Kindaichi Castle. Behind this shrine is the castle ruins

There are documents that state that the Shinohe clan moved from Asamizu Castle to Kindaichi Castle in Ninohe County in the middle of the Sengoku period, and this theory arose from the fact that Kindaichi Castle was called Shinohe Castle

Kindaichi Castle is located on a river terrace on the left bank of the Mabechi River, and it is said that the upper, middle, and lower buildings, separated by dry moats, were the residences of the Shitohe, Kirimaru, and Kindaichi clans, respectively, making it a castle with a complex history

Yasaka Shrine
The approach to Yasaka Shrine is just wide enough for one light car to pass through, just like Asamizu Hachiman Shrine

It is believed that this castle came to be called Yonohe Castle because the Yonohe clan, who had previously ruled Yonohe and used the place name as their surname, moved there, and there seems to be little support for the theory that Yonohe was located in Ninohe County

Kindaichi Castle Ruins (Yonenohe Castle Ruins) <Information>

  • Facility name: Kindaichi Castle Ruins
  • Address: 73 Kindaichidate, Ninohe City, Iwate Prefecture

GOOGLE MAP


summary

As we have seen so far, there are many different theories about where Yonhe was located and why its name disappeared, and there is still no consensus

However, it is believed that it must have existed somewhere in Nukabe County, and searches for its location are still ongoing

Let's hope that some new discoveries will be made in the near future, leading to the identification of the four houses and the solution to the mystery


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