Phantom Sasashita Castle

Do you believe that there was a castle in Sasashita?
The castle, which is said to be the phantom Sasashita Castle, is a castle from the Warring States period that was built around the hill near the present Seijuin.
However, it is said to be a phantom castle because it was immersed in the wave of development of Yokodai before the investigation was sufficiently conducted, so it was not known in detail.
It is said that this castle was built by Mamiya Buzen Morinobu, who served Hojo Odawara.
In the old days, it was also called Shinosu Castle or Sasagi Castle. Near here, you can see traces of sky moat, Mizubori, and dog running.
Looking around Sugimoto (Sasashita 4-chome), there were mountains and valleys, and during that time there were many rivers flowing.
The use of such natural terrain is also called Yamashiro of "Yatsu-style".
In addition, there are Hinokawa in the north, Sasa Shimokawa in the east, Sasa Shimokawa in the south, Sasa Shimokawa tributary in the south, and a steep mountain on the west side. In the event of an emergency, I was able to contact the Tamanawa area in Ofuna from here.
After Nobunaga Oda built Azuchi Castle, during the Azuchi-Momoyama and Edo eras, beautiful castles with castle towers towering on flat lands began to be built, but before that, it was normal to build fort like a fort using such natural terrain.
In that era, when there was no battle, the life of the warlord who should protect the castle was carried out in a place called Jinya.
It is thought that Mr. Mamiya's Jinya was located on a flat ground with a mountain on the back of the current traffic light at Yokodai Entrance.
"What kind of samurai group is the Mamiya family?"
I often receive such a question.
There are a lot of topics about the warlords of Sengoku representing Yokohama, so I would like to take up some of them at once.
At the beginning of the Warring States period, Soun Hojo fought against Uesugi Yamauchi and Uesugi Ogigayatsu, who ruled the Kanto region at that time.
And he had a soldier in a fort called Gongenyama, near Yokohama Station. Ryouesugi attacked Gongenyama with a large army of 20,000.
At this time, from the fort, a warrior named Mamiya, wore a very flashy armor, and put something like a small flag called Kasagi on the front of the helmet, and hit the enemy camp.
On the shade, the "fourth knot", the emblem of Genji Sasaki's emblem, appeared, and it seems that it was very brave to flutter in the beach breeze.
The samurai who protect the castle
"Don't sing Mamiya, sing Mamiya,"
It is said that it was a very difficult battle.
After this battle, Mr. Mamiya seemed to have been recognized by Mr. Hojo Odawara, and was at the forefront of Soun Hojo's advance to Sagami as the leader of the "Sagami Shujyuya".
In order to prepare for Ryouesugi, Nobumori Mamiya built a hall in Horinouchi, near the current Keikyu Kawasaki Station.
However, Uesugi gradually lost his power and retreated to the northern Kanto region, so Nobumori's child, Nobumoto, moved to Sasashita.
The reason is that at that time, Mr. Satomi's power, who was in Boso (now Chiba Prefecture), gradually became stronger, and in particular, the Navy often landed along the coast of Kuraki-gun, such as Kanazawa and Isogo. Because it came to come.
The repelling Satomi was an important thing for Hojo Odawara.
Mr. Mamiya, who moved to Sasashita, had set up Sugita Jinya, Morijinya, Hitorizawa Jinya, and Matsumoto Castle at Nakatodai, Konan Ward, and so on.
As a result, the navy Satomi no longer attacked.
Over the years, Hojo Odawara is destroyed by Hideyoshi Toyotomi's unification of the world.
However, at this time, the battle of the Mamiya family protecting Yamanaka Castle in Hakone was so wonderful, so Ieyasu Tokugawa of the attacking army collected many things as a vassal from Mr. Mamiya who remained in Sasashita. Was.
Later, in the world, many of their families, such as Rinzo Mamiya, who discovered the Mamiya Strait, and Genjiro Sugita, who first introduced Dutch medicine to Japan, came to the world.

It is a story recorded in "Old Story of Hometown Konan 50 Episode".
Each folk tale is available free in principle only for non-commercial purposes.
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