14.Mito Castle Part1

Mito Castle was located in the modern day Mito City which is the capital of Ibaraki Prefecture. The castle became the home base of the Mito-Tokugawa Clan, one of the three branches of the Tokugawa Shogun family. However, the castle looked very different from those of the other branches the shogun.

Location and History

Castle is built using Natural Hazzard

Mito Castle was located in the modern day Mito City which is the capital of Ibaraki Prefecture. The castle became the home base of the Mito-Tokugawa Clan, one of the three branches of the Tokugawa Shogun family. However, the castle looked very different from those of the other branches, Nagoya and Wakayama Castles, and the shogun’s Edo Castle.

The range of Mito City and the location of the castle

It was said that the castle was first built by a local lord, the Baba Clan sometime in the early Middle Ages. It was built on a diluvium plateau sandwiched between Nakagawa River in the north and Senba Lake in the south. Its original location was defensive due to the natural hazard, so it could be easy for the lord to build the castle on it. However, it was thought that the early stage of the castle was still small probably with only the lord’s residence on the eastern edge of the plateau.

The relief map around the castle

As time passed by, the castle was followed by greater lords, the Edo and Satake Clans, and was developed larger and larger. The Satake Clan was one of the greatest warlords in the Kanto Region during the 16th Century in the Sengoku Period. The clan completed the basic structures of the castle, establishing the Main, Second and Third Enclosures in a straight line from the east to the west on the plateau. These enclosures were made of soil and divided by deep dry moats, which were typical methods for building castles at that time in eastern Japan. However, the clan was transferred to the Tohoku Region (they would build Kubota Castle there) in 1602 by Ieyasu Tokugawa, the founder of the Tokugawa Shogunate, since they didn’t support Ieyasu in the decisive battle in 1600.

The ruins of Kubota Castle

Home Base of one of Three Tokugawa Branches

Ieyasu sent his sons to Mito Castle as it would be an important northern strongpoint to defend Edo Castle, the home base of the shogun. His youngest son, Yorifusa finally became the lord of the castle as the founder of the Mito Domain in 1609. Since then, the domain governed the castle and the area around it until the end of the Edo Period as one of the three branches of the Tokugawa Shogun family. The castle was also developed further, for example, the Main and the Second Enclosures were combined to make a new Main Enclosure, the Third Enclosure was renamed the new Second Enclosure, and the new Third Enclosure was built outside the others in the west.

The Portrait of Ieyasu Tokugawa, attributed to Tanyu Kano, owned by Osaka Castle Museum (licensed under Public Domain via Wikimedia Commons)
The Portrait of Yorifusa Tokugawa, owned by The Tokugawa Museum (licensed under Public Domain via Wikimedia Commons)

The relief map around the castle

However, unlike Nagoya, Wakayama and Edo Castles other Tokugawa relatives built using advanced items, such as Main Towers and high stone walls, Mito Castle was still made of soil using conventional technologies from eastern Japan. The reason for it could be that the lords of the Mito Domain usually lived in the Main Hall near the shogun in Edo, or there was no need to improve it more after the government of the shogunate became more stable. However, the most likely reason is that Mito Castle was strong enough without stone walls.

Nagoya Castle
Wakayama Castle
The ruins of Edo Castle
The ruins of Mito Castle

Mito Domain creates Imperialism and Exclusionism

The second lord, Mitsukuni Tokugawa, known as Mito-Komon in several historical plays, promoted arts and started to edit Dainihonshi or the History of Great Japan at the Shokokan institute in Edo, which would later be moved to the Second Enclosure of Mito Castle. This activity uniquely resulted in the idea of Imperialism although the domain was a relative of the shogunate which had taken the power from the Imperial Court.

The Portrait of Mitsukuni Tokugawa, attributed to Tsunenobu Kano, owned by The Tokugawa Museum (licensed under Public Domain via Wikimedia Commons)
The ruins of the Shokokan institute in the Second Enclosure of Mito Castle
Some copies of the History of Great Japan, exhibited by the Second Enclosure Museum

The ninth lord, Nariaki Tokugawa, during the end of the Edo Period, established the domain school called Kodokan in the Third Enclosure of the castle in order to educate the retainers and open Kairakuen Garden to all the people. While the Western foreign ships were often seen around Japan, he opposed the policy of the shogunate to open the country to foreigners. As a result, the Imperialism of the Mito Domain led many other domains’ retainers to the movement for Imperialism and Exclusionism over the country, which finally caused overthrowing the shogunate, which was later called the Meiji Restoration. However, in the domain, the retainers were divided into Tengu Party (believing the movement) and Shosei Party (supporting the shogunate), which would bring into a serious tragedy.

The Portrait of Nariaki Tokugawa, owned by Kyoto University Library (licensed under Public Domain via Wikimedia Commons)
The Kodokan domain school

Sad Killing each other by Mito Domain at Mito Castle

The final version of Mito Castle was like that the largest Second Enclosure became the center of the castle. It had the Main Gate, the Main Hall (also used as the government office), the Shokokan institute, the Corner Turret, and the Three-level Turret. In particular, the Three-level Turret was built as a substitute for a Main Tower. It was about 22m tall, which was too high for a three-story building, in fact, it had five floors inside.

The miniature model of Mito Castle, exhibited by the Second Enclosure Museum (the Third Enclosure Museum on the left, the Second Enclosure in the center, and the Main Enclosure on the right)
The old photo of the Three-level Turret (licensed under Public Domain, via Wikimedia Commons)

The Tengu Party started a rebellion to ask the shogunate to stop trading with foreigners and to exclude them in 1864. In this war, the Tengu Party attacked Mito Castle the Shosei Party resided in, but failed. They eventually went west to ask Yoshinobu Hitotsubashi in Kyoto, who was a son of Nariaki and would become the last shogun, for what they wanted. However, they were arrested by Yoshinobu’s instructions and many of them were executed. The Shosei party also killed or persecuted the families in Mito of the Tengu Party. After that, the situation dramatically changed that the New Government was established and the shogunate was defeated in 1868. The survivors of the Tengu Party returned to Mito Castle and avenged against the Shosei Party. Some of the Shosei Party, who were on the run, attacked the castle the Tengu Party were resided in this time, but failed again. The strength of the castle was ironically proven by the tragedy between the retainers of the owner domain. Records say the number of the retainers was reduced from 3,449 to 892 during the internal conflict, which meant competent personnel from the domain ran out to modernize Japan.

The rebellion of the Tengu Party drawn on an Ukiyoe painting, attributed to Kuniteru Utagawa (licensed under Public Domain, via Wikimedia Commons)
The photo of Yoshinobu Hitotsubashi, by 1867 (licensed under Public Domain via Wikimedia Commons)

To be continued in “Mito Castle Part2”

118.Oshi Castle Part1

Tins castle is known for the Battle of Oshi Castle.

Location and History

Narita Clan builds Castle using Marshes between rivers

Gyoda City is located in the northern part of Saitama Prefecture, which is sandwiched by two large rivers in the Kanto Region, Tonegawa and Aarakawa Rivers. The land of the city is very flat and has been developed for living comfortably, however, it was marshy and waterlogged in the Middle Ages due to its terrain and flood from the rivers. The Narita Clan governed the area, which was called Oshi, in the 15th and 16th Centuries during the Sengoku Period. It is said that the clan first built Oshi Castle in the late 15th Century. Many battles happened in the Kanto Region at that time, so local lords needed to protect themselves by building strong castles. Some built mountain castles such as Minowa Castle for the Nagano Clan and Kanayama Castle for the Iwamatsu Clan. On the other hand, the Narita Clan’s choice was to build a Water Castle, using the area’s features of islands among the marshes and natural levees along the rivers. The castle’s enclosures were connected by paths on bridges and earthen walls.

The range of Gyoda City and The location of the castle

The strength of the castle was actually proven when Hideyoshi Toyotomi invaded the Kanto Region to complete his unification of Japan in 1590. The whole region had been governed by the Hojo Clan which the Narita Clan served then. The Hojo Clan ordered their branches including Oshi Castle to gather soldiers to their home base, Odawara Castle to against Hideyoshi. Ujinaga Narita, the lord of Oshi Castle had to leave it for Odawawa, so few defenders were left in the castle, under the castle keeper, Nagachika Narita, Ujinaga’s cousin. Hideyosi attacked the Hojo’s territory with over 200,000 soldiers, sending troops to not only Odawara Castle but also branch castles. For example, Kanayama Castle where a magistrate from the Hojo governed was easily open by the troops. However, the only 500 defenders with 2500 residents in Oshi castle, instructed by Nagachika, never surrendered against over 20,000 attackers.

Castle is attacked by Inundation tactics in Battle of Oshi Castle

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

The commander head of the attackers was Mitsunari Ishida, a highly trusted retainer from Hideyoshi, who was also supported by other lords, such as Nagamasa Asano and Masayuki Sanada. Hideyoshi was not there, but he ordered Mitsunari to flood the castle by making banks surrounding it to keep more water. His idea probably came from the geographical features and his successful experience of the Battle of Bicchu-Takamatsu Castle where he did the same way. It is said that Mitsunari put his strong hold on Maruhakayama-Kofun, an Ancient Burial Mound, about 2km away from the castle in the south. His team rapidly built 15 to 25 km banks around the mound in few days to dam water from the rivers. A folk story remains that farmers were asked to bring earth bags to build banks for a high fee.

The portrait of Mitsunari Ishida, owned by Hajime Sugiyama (licensed under Public Domain via Wikimedia Commons)
Maruhakayama Ancient Burial Mound
The partially remaining bank Mitsunari built, called Ishida Tsutsumi

It is uncertain if his attempt was successful according to some records in which the defenders secretly cut part of the banks to drain water drowning some attackers. The fact is that when the supporting lords tried to assault the castle, Hideyoshi ordered them to stop it and continue the inundation. The siege lasted for about a month, however, the castle couldn’t be beaten until the master Hojo surrendered in Odawara Castle. The castle has been nicknamed “a floating castle” of “a turtle castle” which probably originate from what the castle looked like in the siege.

“The illustration of the Narita Clan’s Oshi Castle during the Tensho Era”, it was made by a local historian to consider the Battle of Oshi Castle during the Meiji Era, exhibited by the Gyoda City Local Museum
The Horikiri-bashi Bridge where the bank was cut according to a local tradition

Castle becomes important defense site for Edo

In the Edo Period, Oshi Castle was governed by relatives or hereditary vassals of the shoguns as the Oshi Domain. This was because this castle was located in an important defensive site for Edo Castle, the shogun’s home base in the south. It is said that the Abe Clan, which often became members of shogun’s council of elders, completed the castle. They still used the basic structures of the castle as the island-like enclosures among the moats and marshes. However, they improved the castle’s defense systems more by building the three-level turret (similar to the Main Tower), other turrets and gates. The castle and domain were finally followed by the Okudaira-Matsudaira Clan, whose origin was the son of Nobumasa Okudaira who contributed to Ieyasu Tokugawa, the founder of the shogunate, in the Battle of Nagashino Castle and was married with Ieyasu’s daughter. They were trusted in and ordered by the shogunate to guard the No.3 Shinagawa Battery facing Edo Bay to prepare for possible threat to Western battleships at the end of the Edo Period.

The miniature model of Oshi Castle during the Edo Period, exhibited by the Gyoda City Local Museum
The rebuilt three-level turret of Oshi Castle, it was built in a different position from the original one
The No.3 Shinagawa Battery

To be continued in “Oshi Castle Part2”

152.Tsu Castle Part1

The final home base of Takatora Todo

Location and History

Field of Anotsu Castle Battle

Tsu Castle is located in what is now Tsu City, the capital of Mie Prefecture which was called Ise Province in the past. Tsu City calls itself the city with the shortest name in the world. Tsu just means port. Originally, the area was called Anotsu, which means the port of Ano. Anotsu was one of the three greatest ports in Japan in the Middle Ages. However, the port declined due to the Meio earthquake followed by a great tsunami in 1498.

The range of Ise Province and the location of the castle

There was also been Anotsu Castle in the plains land around the area, which was the former Tsu Castle. In 1600 before the famous Battle of Sekigahara, a preliminary skirmish happened at the castle, called the Battle of Anotsu Castle. Large troops from the West Squad attacked the castle with few defenders of Nobutaka Tomita belonging to the East Squad. The defenders had to surrender, as a result, the castle went to ruin. The Tokugawa Shogunate, which led the East Squad finally won the Battle of Sekigahara in 1600, thought they need a stronger lord and castle around the area. This was because they were still against the Toyotomi Clan which lived in Osaka Castle, not so far from Ise Province in the west.

the Ukiyo-e painting of Nobutaka Tomita rescued by his wife, from an episode in the Battle of Anotsu Castle, attributed to Yoshitoshi Tsukioka, published in 1885   (licensed under Public Domain via Wikimedia Commons)

Takatora Todo improves Castle as his home base during peacetime

In 1608, the shogunate replaced Nobutaka Tomita with Takatora Todo as the lord of Anotsu Castle. Takatora was not a hereditary feudal lord, which meant he didn’t work under Ieyasu Tokugawa for a long time, who was the founder of the shogunate. He was a well-known master of castle construction through building Uwajima, Ozu and Imabari Castles. He also helped the shogunate build famous castles such as Edo, Nagoya, and Nijo in Kyoto. That’s why he was trusted by the shogunate. They expected Takatora to build a strong castle to stand against the Toyotomi Clan in Osaka Castle in the west. Takatora accomplished this by renovating Anotsu Castle, which was renamed Tsu Castle sometime around the period.

The portrait of Takatora Todo, private owned (licensed under Public Domain via Wikimedia Commons)
Uwajima Castle
Imabari Castle

He also owned Iga-Ueno Castle in Iga Province, which was west of Ise Province and closer to Osaka. He said that Tsu Castle would be his home base during peacetime while Iga-Ueno Castle would be the other one for wartime. However, Tsu Castle was adequately defensive even if it was his peacetime home base in the plains. The castle also reflected Takatora’s concepts of building castles.

Iga-Ueno Castle

Takatora’s concepts of building castles

The Main Enclosure was simply square shaped, which was easy to construct and accommodate large troops. While it may be weak for defense, the enclosure was surrounded by the wide Inner Moat, high stone walls, and many turrets on the walls. The gates of the enclosure were strongly guarded with a square defensive space called Masugata. Moreover, to enter the gates, visitors had to pass other small enclosures called Demaru or the Barbicans in the Inner Moat. The Second Enclosure and the Outer Moat were also built concentrically. Such structures can be seen in other castles which Takatora was involved in, such as Imabari, Nagoya, Nijo, and Sasayama.

The stone walls of the Main Enclosure of Tsu Castle
Tsu Castle in the last stage of the Eco Period, from the signboard at the site
Nagoya Castle
The drawing of Nagoya Castle in Owari Province (exhibited by the National Diet Library)

After the shogunate beat the Toyotomi Clan in 1615, Tsu Castle became the home base of the Tsu Domain which the Todo Clan governed, throughout the Edo Period. The castle town of Tsu Castle prospered as well as being on the Ise-Gingu Shrine pilgrimage road.

To be continued in “Tsu Castle Part2”