Mitsuyasu Kato – 日本200名城バイリンガル (Japan's top 200 castles and ruins)

128.Yogaiyama Castle Part2

The spot for hikers and history fans

Features

Castle Ruins on Hiking course

Today, the ruins of Yogaiyama Castle are on a hiking course as well as a historical site in Kofu City. The top of the ruins on the mountain is about 250m above the starting point of the trail at the foot. Therefore, you need to prepare for a long hike or a grueling climb to visit the ruins, which takes over 30 minutes to reach the top. The first half of your tour will be a pure hike by climbing a natural zigzagging trail. You may see some stone walls along the route, but they were probably built after the castle period.

Were these stone walls built after the castle period?

You will eventually find some signposts of Vertical Moat or Earthen Walls, which are around the entrance of the castle ruins. These actual ruins are partially covered with bushes, so you may not notice them without the signposts.

These ruins are partially covered with bushes

Original Gate Ruins along Trail

You will also find other ruins such as gates along the trail, however, the trail is not always on the original one. According to previous researches, the castle had 8 gates to reach the Main Enclosure on the top. As long as I checked, there are actually only 4 gate ruins with signposts along the current trail, which still look very defensive. I think they should be the original gates of No.2, No.3, No.6 and No.8.

The map around the castle

On the other hand, there are also other entrances of enclosures, which look like gate ruins without signposts. They are set straight in front of the enclosures, which mean not defensive, so may not be original and built later for hikers. If so, some original gate ruins (probably No.4, No.5 and No.7) are not on the current route probably because they are inconvenient for hikers.

In addition, the No.1 gate ruins seem to be on the route, but without a signpost, which I didn’t notice.

I think this is around the N0.1 Gate Ruins as some stone walls remain

Who built Masugata System of this Castle?

Out of the 4 original gate ruins with signposts, No.2 (with the first signpost of Gate Ruins) and No.3 (with the second one) are so great. They are surrounded by stone walls, forming a square space, called Masugata. The trail also turns right to exit the gate, plus, other enclosures are in the back of the gate and ahead of the route. That meant the defenders would counterattack the front and side of the enemies in the Masugata.

The No.2 Gate Ruins, the trail turns right

The No.3 Gate Ruins, similar to the No.2 Gate Ruins

This structure is seen in other castles using high stone walls, which would be built much later than Yogaiyama Castle. However, it is not uncertain who built or improved this system. If the Takeda Clan built it, it would be very advanced, if Mitsuyasu Kato improved it, he would have applied it from other castles like Kofu Castle to Yogaiyama Castle.

The restored Yamanote-mon Gate of Kofu Castle which has the Masugata system

The miniature model of the Yamanote-mon Gate, exhibited in the Inari Turret of Kofu Castle

Main Enclosure, Largest one in Castle

The No.8 Gate Ruins are the entrance of the Main Enclosure. It is the largest enclosure in the castle on the top of the mountain, surrounded by thick earthen walls. There is only the stone monument for the birthplace of Shingen Takeda in it. There should be a good view point of Kofu city area, but unfortunately trees shut out the view.

The No.8 Gate Rums, the entrance of the Main Enclosure

The earthen walls surrounding the enclosure

The stone monument for the birthplace of Shingen Takeda

Unfortunately, this is not a good view point

To be continued in “Yogaiyama Castle Part3”
Back to “Yogaiyama Castle Part1”

128.Yogaiyama Castle Part1

The final part of the Takeda Clan for a battle

Location and History

Nobutora Takeda builds set of this Castle and Takeda Clan Hall

Yogaiyama Castle was located in what is modern day Kofu City, the capital of Yamanashi Prefecture which was called Kai Province. The city was also the provincial capital since Nobutora Takeda, the governor of the province, built his official residence there in 1518. During the Sengoku Period, Most local lords didn’t only serve their governor with authority. The situation in Kai Province was the same, Nobutora needed to force the local lords to serve him by power. Otherwise, some local lords or even his relatives tried to take him over. The construction of the residence was done after Nobutora unified the whole of Kai Province. The residence was called Takeda Clan Hall, which was also used as the home base of the clan.

The location of the castle

The portrait of Nobutora Takeda, attributed to Nobukado Takeda, owned by Daisen-ji Temple (licensed under Public Domain via Wikimedia Commons)

He built the hall on a square enclosure which was nearly 200m on one side, surrounded by earthen walls and water moats. This was a typical style of the residences for governors in Japan at that time, emulating the style of Shogun’s palace in Kyoto. The completion of the hall meant that his authority was established in the province. He also became a strong warlord of the province. However, this was not enough for him because he was still uncertain the local lords would be loyal to him from then on. Moreover, other warlords in other provinces could have invaded Kai Province at anytime. For these reasons, Nobutora built another castle on a mountain about 2km away from the hall on the north, called Yogaiyama Castle, in 1520. The main purpose of the castle was for emergencies. In case there was a battle happening, he and his family could escape from the hall to the mountain castle.

The miniature model of Takeda Clan Hall, exhibited by Kofu Fujimura Memorial Museum

The aerial photo of the ruins of Takeda Clan Hall and Yogaiyama Castle, exhibited by Kofu Fujimura Memorial Museum, adding the red letters

Castle works very well in battle against Imagawa Clan

The chance to use Yogaiyama Castle came quickly in 1521. The Imagawa Clan, a great warlord in Suruga Province, located in the south of Kai, sent their troops who were led by Masashige Kushima, a retainer of the clan, to invade Kai. Nobutora actually told his wife to escape from the hall to Yogaiyama Castle while he fought with Imagawa’s troops. It was said that his son, Shingen Takeda was born at Yogaiyama Castle during the battle. As a result, Nobutora completely repelled his enemies, making his unification of the province stronger. The network of the hall and the mountain castle worked very well.

The statue of Shingen Takeda in front of Kofu Station

The relief map around the castle

Yogaiyama Castle was made to be the final part for a battle, so it was very practical. The structures of the castle were constructed using natural terrain and partly stonework. A lot of enclosures were built along the ridge of the mountain. They were basically surrounded by earthen walls and had a defensive entrance called Koguchi partly using stone walls. The route to the center of the castle through these enclosures was designed in a zigzagging pattern in order to slow down enemies and prevent them from attacking easily. Vertical moats were dug on slopes of the mountain to avoid enemies moving easily. Some enclosures were also divided by an artificial ditch. The Main Enclosure on the top was the residential area and a rock garden where the lord family used.

The layout of Yogaiyama Castle, from the signboard at the site

The stone walls used for the entrance of an enclosure of Yogaiyama Castle

Castle is abandoned after Kofu Castle is built

Shingen and his son, Katsuyori maintained this castle. However, Katsuyori was unfortunately defeated by Nobunaga Oda in 1582. The castle was owned by the Oda Clan, followed by the Tokugawa Clan and Mitsuyasu Kato under the Toyotomi Clan. It was said that Mitsuyasu improved the castle probably by building stone walls. On the other hand, the Tokugawa Clan and Mitsuyasu built Kofu Castle using high stone walls on a plain land, which was strong enough even in such a location. As a result, Yogaiyama Castle was eventually abandoned in the early Edo Period.

The Portrait of Katsuyori Takeda, ownd by Koyasan Jimyoin (licensed under Public Domain via Wikimedia Commons)

The portrait of Mitsuyasu Kato, private owned (licensed under Public Domain via Wikimedia Commons)

To be continued in “Yogaiyama Castle Part2”

25.Kofu Castle Part1

A very important strongpoint for the Tokugawa Shogunate

Location and History

Mitsuyasu Kato might have developed it greatly

Kofu Castle was located in Kai Province (what is now Yamanashi Prefecture). Kai Province was owned by the Takeda Clan for a long time until 1582 when the clan was defeated by Nobunaga Oda. Since then the Oda clan governed the province but immediately followed by the Tokugawa, Toyotomi, and the Tokugawa clan again. Kofu City, which is the prefectural capital of the prefecture, had already been the castle town for the Takeda Clan Hall. It is said that the Tokugawa Clan first built Kofu Castle at the south of the town in 1583 of their first governance, but it is uncertain. In 1590, Toyotomi’s servant, Mitsuyasu Kato was given Kai Province. He improved Kofu Castle greatly, probably with building the large scale stone walls. This is because Toyotomi had the craftsmen who were able to build stone walls called Ano-shu, which Tokugawa didn’t have. It is thought that the basic structure of the castle was completed at the same time.

The location of the castle

Protected by High Stone Walls and Tripled Moats

The castle consisted of three parts. The main portion is called Uchi-shiro, it includes the Main Enclosure, the base for the Main Tower and other enclosures. It was surrounded by stone walls and the Inner Moat. It was also on a hill called Ichijo-koyama, and had three entrances – the Main Gate on the south, the Yamanote-mon Gate on the north, and the Yanagi-mon Gate on the west. The eastern part of the main portion is protected strictly by the high stone walls. Secondly, the ground for the warriors’ houses called Naikaku was around the main portion, surrounded by the Second Moat. Lastly, the ground for the castle town was around Naikaku, also surrounded by the Third Moat.

The old map of Kofu Castle, from a book “Rakushido-nenroku” by Yoshiyasu Yanagisawa, owned by The Yanagisawa Library *(licensed under Public Domain via Wikimedia Commons)*

The miniature model of the main portion of Kofu Castle, the front of the photo is the high stone walls on the east (an exhibition in the Inari Turret)

Important Strongpoint for protecting Edo

In the Edo Period from the 17th Century, Kofu Castle became a very important spot. The Tokugawa Shogunate set the Five Major Roads including the Kofu Road passing through Kofu town. Kofu was regarded as the western strongpoint to protect Edo (what is now Tokyo), the Shogun’s home base. For this reason, the Shogunate basically governed the castle directly. For example, the Shogun’s relative Tsunatoyo Tokugawa lived in the castle, who became the sixth Shogun Ienobu later. Yoshiyasu Yanagisawa was the first lord of the castle out of non-Shogun’s relatives in 1705, who was a senior vassal of the Shogunate. His son, Yoshiyasu was transferred to Yamato-Koriyama Castle in 1724, then Kofu Castle was Shogunate-owned again.

The positional relation between Kofu and Edo

*The portrait of Yoshiyasu Yanagisawa, owned by Ichiren-ji Temple (licensed under Public Domain via Wikimedia Commons)*

In 1868 during the Meiji Restoration, the battle between the New Government and the Shogunate happened. Taisuke Itagaki, one of the leaders of the New Government Army thought they needed to capture Kofu Castle faster than the Shogunate. The Shogunate also sent the famous warrior party called the Shinsen-gumi led by Isami Kondo to Kofu Castle. Itagaki rushed and succeeded to enter the castle by a narrow margin, so that he could defeat the Shinsen-gumi.

The picture of Taisuke Itagaki, published by the Eastern Culture Association *(licensed under Public Domain via Wikimedia Commons)*

*The picture of Isami Kondo, owned by the National Diet Library (licensed under Public Domain via Wikimedia Commons)*

To be continued in “Kofu Castle Part2”