タグ: Hojo clan

125.Kozukue Castle Part1

The castle in the center of the popular Kozukue Territory

Location and History

Castle along one of Kamakura Roads

Kozukue Castle was located in what is now the northern hilly area in Yokohama City, Kanagawa Prefecture. In the present Japan, Tokyo is the center of Japan including the Kanto Region. For that reason, many major roads gather in or spread from Tokyo. Some of them also go through the eastern seaside area of Yokohama City. However, before the Edo Period which started in the 17th Century, the center of the Kanto Region was Kamakura, called the Warriors’ Capital. Many major roads, called the Kamakura Roads, at that time also gathered in or spread from Kamakura. Kozukue Castle was near one of the Kamakura Roads and alongside Tsurumi-gawa River, which was an important spot for transportation.

The location of the castle

The present road network of the Kanto Region going to and from Tokyo (Source: Ministry of Land, Infrastructure and Transport)
The past road network of the Kanto Region going to and from Kamakura (Source: Tama City, adding the positions of Kozukue Castle and Kamakura)

“Kozukue Territory” and “Kozukue Group”

It is uncertain when Kozukue Castle was first built. The first appearance of the castle was after the Rebellion of Kageharu Nagao, who was against his master, the Uesugi Clan in 1478. The Toshima Clan who supported Kageharu used the castle, and Dokan Ota, a senior vassal of the Uesugi Clan beat them. After a while, the Hojo Clan, a great warlord used the castle again as a bridgehead for invading the Kanto Region in the 16th Century during the Sengoku Period. Even after the Hojo Clan was succeeded, they still considered the area around the castle as one of their important territories. They called the area “Kozukue Territory” like we call the area today, Yokohama City. They also called the group of the warriors who lived in the area “Kozukue Group”. Kozukue Castle was the center of the area and the group, and one of Hojo’s branch castles, which must have been more popular than we assume.

The portrait of Dokan Ota, owned by Daijiji Temple (licensed under Public Domain via Wikimedia Commons)
The portrait of Ujitsuna Hojo, the lord of the clan when they invaded the Kanto Region, owned by Odawara Castle (licensed under Public Domain via Wikimedia Commons)

Castle has Simple Layout

Kozukue Castle was built on the edge of a hill sticking out from the south towards Tsurumi-gawa River to the north. The layout of the castle was simple, having the large Western and Eastern Enclosures, divided by the slender Connecting Enclosure. They were all made of soil. However, these enclosures were surrounded by large deep dry moats. What kinds of buildings stood on the enclosures is still uncertain, but it is thought that some turrets were built on the earthen bases. In addition, some barbicans were built along the hill around the main portion.

The relief map around the castle

The imaginary drawing of Kozukue Castle (from the signboard at the site, adding comments)

Development and Abolition of Castle

In 1590, when the ruler, Hideyoshi Toyotomi invaded Hojo’s territory for his unification of Japan, Hojo ordered their branch castles to gather the warriors to their home base, Odawara Castle. That meant the branch castles including Kozukue Castle had to protect themselves with fewer defenders. The lord of Kozukue Castle decided to draft farmers to protect it. It is thought that the dry moats of the castle were also developed making them larger and deeper to protect the castle with fewer warriors and untrained defenders. This is what we can now see as the ruins of the castle. However, no battles happened then. The castle was open and finally abandoned after Hojo surrendered to Hideyoshi.

The Portrait of Hideyoshi Toyotomi, attributed to Mitsunobu Kano, owned by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)
The dry moat of Kozukue Castle

To be continued in “Kozukue Castle Part2”

32.Kasugayama Castle Part1

The castle of Kenshin Uesugi, the strongest warlord

Location and History

Kenshin Uesugi, Warlord who respected Justice

Kasugayama Caste was located in Echigo Province (what is now Nigata Prefecture), facing the Japan Sea. The castle is well known for one of its lords, Kenshin Uesugi. Kenshin is said to be the strongest warlord in the 16th Century during the Sengoku Period. While he fought over 70 battles during his 49-year life, he suffered no obvious defeat.

The location of the castle

The portrait of Kenshin Uesugi, owned by the Uesugi Shrine (licensed under Public Domain via Wikimedia Commons)

Kenshin also had very unique perspectives which other warlords never had. He never fought to invade other provinces by himself. He only fought with the help of others who were defeated by another warlord. As a result, he fought with a great warlord, Shingen Takeda 5 times on the south of his province. He also went over the mountains to the Kanto Region facing the Pacific Ocean to fight with the Hojo Clan as many as 17 times. Kenshin was a devout Buddhist, remained single all his life, and prayed for victory at the Bishamon-do Hall several days before his battles. He once escaped from the castle and tried to become a Buddhist priest, but his retainers urged him to go back to the castle until he gave up trying to become a priest.

The statues of Shingen Takeda (on the left) and Kenshin Uesugi (on the right) at the Kawanakajima Battlefield (licensed under Public Domain via Wikimedia Commons)
The restored Bishamon-do Hall

Despite Kenshin’s strength, he was not able to become a ruler. Every time he withdrew from a province after his win, his enemies got their territories back. He is sometimes criticized by historians. However, many history fans still love him as a warlord who respected justice.

The flag of Kenshin Uesugi (taken by 松波庄九郎 from photoAC)

Castle covered with Enclosures and Buildings.

Kasugayama Castle was built using earthworks on an 189m high mountain beside the Kubiki Plain, the western part of Nigata Pref. It is uncertain when the castle was first built, but Tamekage Nagao, Kenshin’s father, improved the castle. The scale of the castle became larger in Kenshin’s period, and the mountain was covered with uncountable enclosures and buildings.

The old drawing of Kasugayama Castle  (licensed under Public Domain via Wikimedia Commons)

The castle consisted of three parts at that time. The main portion of the castle was on the top of the mountain with the front facing the plain on the east. It included the Main Enclosure, the Bisyamon-do Hall, a senior vassal Naoe’s Hall, and Halls for Kenshin’s two adopted sons, Kagekatsu and Kagetora. Next, the Main Route went up from the southeast foot of the mountain to the top. It was a long detour around the mountain, passing the guard house and other senior vassals’ halls such as Kakizaki. Lastly, the Back Route also went up from the northeast foot to Naoe’s Hall. It passed through the Kurogane-mon Gate, the Hall for the Lord, the Sengan-mon Gate and the alternate entrance called Koguchi.

The georama of Kasugayama Castle at Joetsu City Buried Cultural Property Center

The castle might not have had complex defense systems, but it had the network of the branch castles, such as Samegao Castle, to work together when a battle happened.

The network of the branch castles around Kasugayama Castle (Joetsu City Buried Cultural Property Center)

Abandoned at Peaceful Time

After Kenshin died in 1578, an internal battle unfortunately happened in the castle between Kagekatsu and Kagetora. Kagekatsu finally won, but he was transferred to Wakamatsu Castle by the ruler Hideyoshi Toyotomi in 1598. After that, the Hori Clan governed the castle, building the outer earthen walls called So-gamae to make the castle the largest. However, the clan moved to Fukushima Castle on the plain for convenience of governance in 1607. Kasugayama Castle was abandoned at the same time.

The portrait of Kagekatsu Uesugi, owned by Uesugi Shrine (licensed under Public Domain via Wikimedia Commons)
The restored outer earthen walls

To be continued in “Kasugayama Castle Part2”

22.Hachioji Castle Part1

A completed version of a mountain castle in Japan

Location and History

One of main Branch Castles of Hojo Clan

Hachioji Castle was a large mountain castle located in what is now Hachioji City, the western part of Tokyo Metropolitan, the Kanto Region. In the late 16th Century during the Sengoku Period, the Hojo Clan owned most of the region. The clan was based in Odawara Castle located at the southwest corner of the region, while they built the network of branch castles in the region to maintain their territory. Hachioji Castle was one of the main branch castles for the clan.

The location of the castle

The castle was first built by Ujiteru Hojo at latest in 1584, replacing Takiyama Castle located about 10km northeast of Hachioji Castle. There were several reasons for the replacement, one of which was that the Hojo Clan wanted to have a much stronger castle. The tension between Hojo and the ruler, Hideyoshi Toyotomi was increasing at that time, so Hojo hurried to improve the castle. They put as much of their power and technology as they could into this castle.

The ruins of Takiyama Castle

Three Parts

Hachioji Castle consisted of three parts. The first one is called the Nekoya Area which was used for residences of retainers and craftsmen around the entrance of the castle. This area is alongside the Shiroyama River in a valley terrain.

The three parts (The diorama of the castle at the site, adding the comments)

The second part is called the Residence on the Foot Area where the Main Hall for the lord of the castle was built. This area is also alongside the river and the back of the Nekoya Area but was strictly protected. Visitors had to go across the river to enter the Main Gate, go the Main Route, and go across the river again over the Movable Bridge in front of the Main Hall. The bridge would be removed when a battle happened. The entrance of the hall was zigzagged, and its foundation was covered with terraced stone walls. The hall was made up of several buildings including the formal ones called “Shuden” or the Palace, and “Kaisho” or the Club. It also had a pond garden to host visitors. A lot of items such as utensils, weapons, and imported porcelains were found by the excavation.

The restored or developed Residence on the Foot Area

The last part is the Fortress on the Mountain Area which would be used when a battle happened. The Main Enclosure is on the 445m high top of the mountain (about 200m higher than the foot, which itself is a 200m above ground). Many other enclosures were built around the Main Enclosure and the ridges are used for the trails between the top and the foot of the mountain. In particular, lots of stone walls covered these enclosures and trails. In addition, not only the front of the Main Enclosure, but also the back of it was also protected strictly by small forts and ridges covered with stone walls. Such structures for a mountain castle were very rare, so the castle can be seen a completed version of mountain castles in Japan.

The ruins of the Fortress on the Mountain Area

Captured by Hideyoshi Toyotomi’s troop in One day

However, the castle was taken over by Hideyoshi’s troops in one day. On June 23, 1590, at least 35,000 soldiers attacked the castle, while the number of the defenders was only 3,000 including farmers and women. The lord, Ujiteru wasn’t there because he was at Odawara Castle. In addition, Hideyoshi ordered his troops to charge and capture the castle. The castle was too large for the 3,000 people to prevent from the bare-knuckled attack. There has been a sad story that many women threw themselves into the waterfall basin of the river before the castle fell.

The Portrait of Hideyoshi Toyotomi, attributed to Mitsunobu Kano, ownd by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)
The waterfall of Go-Shuden (licensed by じゃんもどき via Wikimedia Commons)

To be continued in “Hachioji Castle Part2”