Edo castle – ページ 2 – 日本200名城バイリンガル (Japan's top 200 castles and ruins)

114.Karasawayama Castle Part1

The last lord of the castle, Nobuyoshi Sano built high stone walls on the main portion of the castle, which was a rare case in the region. It must have been done with help from Hideyoshi Toyotomi because he and his retainers had built many similar stone walls in western Japan.

Location and History

Sano Clan builds Castle during Sengoku Period

Karasawayama Castle was located in modern day Sano City, Tochigi Prefecture, which was a large mountain castle beside the northern edge of the Kanto Plain. Tradition says that a famous general, Hidesato Fujiwara built it in 972 during the Ancient times. However, historians think that it was created by the Sano Clan, who were descendants of Hidesato and governed the castle for a long time. According to the results of the research and studies, the clan first lived in a hall at the western foot of the mountain until the 15th Century. It was thought that the castle was built or developed by the clan on the mountain when many battles happened in the Kanto Region, during the Sengoku Period. Other popular mountain castles in the region like Kanayama and Minowa Castles were built at the same time to protect the owners under the severe conditions. The Sano Clan first used the mountain castle in the cases of emergency, but eventually lived in it to survive.

The range of Sano City and the location of the castle

The relief map around the castle

The ruins of the Sano Clan’s residence (current Koshoji Temple)

Kenshin Uesugi devotes to capture Castle

On the other hand, great warlords, who wanted to rule over the region, thought they would need to get Karasawayama Castle because of its advantageous location. Kenshin Uesugi was one of them and was devoted to do it. There is a symbolic episode when he first invaded the Kanto Region around 1560. He visited Karasawayama Castle with few vassals, which was surrounded by his enemy, the Hojo Clan’s large troops, to persuade the lord of castle, Masatsuna Sano to support him until he succeeded. However, every time Kenshin returned to his home, Kasugayama Castle in Echigo Province, the Hojo Clan got its territory back and forced local lords to support it. Masatsuna was one of them and he had to switch allegiance.

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

Kenshin, who is considered one of the strongest generals, got angry and attacked the castle, but was not able to capture it by force as it was really strong. Even when Masatsuna surrendered to Kenshin, they would do the same things after Kenshin went back. As a result, they fought with each other at least five times. Kenshin once banished Masatsuna from the castle and sent his relative and vassals to govern it. However, he finally returned the castle to Masatsuna for some reasons. He might have felt the difficulty of how to control this distant site.

*The portrait of Masatsuna Sano, owned by Daianji Temple (licensed under Public Domain via Wikimedia Commons)*

High stone walls are built with help of Hideyoshi Toyotomi

The Kanto Region, including Karasawayama Castle, eventually belonged to the Hojo Clan during the 1570’s and 1580’s. It sent its relative, Ujitada Hojo to govern the castle like Kenshin had used to do. On the other hand, Masatsuna’s relative, Fusatsuna Sano ran away from the region to western Japan to serve Hideyoshi Toyotomi who was the ruler of Japan at that time. Fusatsuna led Hideyoshi to the region when they invaded it in 1590, which resulted in Fusatsuna getting the castle back as the lord. However, Hideyoshi seemed to also want to control the castle. He made the little brother of his close vassal, Nobutaka Tomita to be the successor of Fusatsuna, which would be called Nobuyoshi Sano, the last lord of the clan and the castle. This could be because his rival, Ieyasu Tokugawa was moved by him to the region. He wanted to have Ieyasu monitored by someone reliable.

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

Karasawayama Castle was built on a large mountain which had several ridges. Lots of enclosures were also built on the top and the ridges which had turrets, lookouts, guard houses and shooting points to monitor and attack enemies. These ridges or enclosures were divided by deep ditches to prevent enemies from invading easily. There are two main routes in the south and west, which gathered at the meeting point in front of the Main Gate near the top, which were controlled by the castle’s soldiers. The foot area was used as the lords and senior vassals’ residences surrounded by thick and long earthen walls for defense. They had been developed and improved by the Sano, Uesugi, and Hojo Clans for a long time.

Karasawayama Mountain where the castle was built

The remaining earthen walls at the foot of the mountain

The ruins of the residence of a sennior vassal at the foot of the mountain called Hayato-Yashiki

The castle’s foundations were basically made of soil, which was a common way of building castles in eastern Japan at that time. However, the last lord, Nobuyoshi built high stone walls on the main portion of the castle, which was a rare case in the region. It must have been done with help from Hideyoshi because he and his retainers had built many similar stone walls in western Japan. On the other hand, Ieyasu still didn’t have the techniques and guilds for building such high stone walls. That meant the stone walls of strong Karasawayama Castle must have been a big threat to Ieyasu.

The high stone walls of Karasawayama Castle

Life of Castle suddenly ends, ordered by Ieyasu Tokugawa

When Ieyasu got the power to be the ruler around 1600 after Hideyoshi died, Nobuyoshi somehow survived by supporting Ieyasu. However, the declinations of Karasawayama Castle and the Sano Clan suddenly occured. In 1602, Ieyasu ordered Nobuyoshi to move from Karasawayama to Sano Castle in a plain area nearby. It was said that the reason for it was that it could be rude for Nobuyoshi to look down on Ieyasu’s home, Edo Castle from the mountain castle. Nobuyoshi was finally fired by Ieyasu in 1614 due to being implicated for a crime of his brother, Nobutaka Tomita. Overall, Ieyasu seemed to want to remove possible rebels like Nobuyoshi with strong castles like Karasawayama.

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

To be continued in “Karasawayama Castle Part2”

60.Ako Castle Part1

Ako Castle was located on the western edge of Harima Province, facing the Seto Inland Sea, which is now known as Ako City in Hyogo Prefecture. The castle is known as a stage for the Ako Incident, one of the most popular historical events in Japan. It’s also famous for salt industry since salt fields were developed during the Middle Ages. There is little rain in the area.

Location and History

Naganao Asano renovates Castle

The range of Harima Province and the location of the castle

It is said that Nagamasa Ikeda, a little brother of Terumasa Ikeda who was the lord of Himeji Castle, first built the castle in 1600 as their branch castle. A branch family of the clan eventually became an independent lord living in the castle as the Ako Domain in 1615. However, the second lord was fired by the Tokugawa Shogunate in 1645 due to his murder from madness. The details of the first stage of the castle are unknown as Naganao Asano, following the castle and domain in the same year, renovated the castle as we know today. He was the lord of a branch family of the Asano Clan which lived in Hiroshima Castle, and was transferred from Kasama Castle. It was very rare to be allowed to renovate castles by the shogunate after 1615 when it defeated the Toyotomi Clan at Osaka Castle and its government became stable.

*The portrait of Naganao Asano, owned by Kagakuji Temple (licensed under Public Domain via Wikimedia Commons)*

The renovation was done between 1648 and 1661. The layout of the castle was designed by scholars of military science, Masazumi Kondo and Soko Yamaga. They designed the stone walls of the castle to be bent sophisticatedly to shoot guns at any direction. The Main Enclosure and the Second Enclosure surrounding it were the main portion of the castle, backed by the sea in the south. The Third Enclosure, including the Main Gate, was added to the main portion in the north. These enclosures were divided by water moats on a flat ground, so the castle can be classified a Plain or Sea Castle. The Main Enclosure had the Main Hall for the lord and the stone wall base for the Main Tower, however, the tower was not built on the base.

The sitting statur of Soko Yamaga at Ako Castle Ruins

The stone walls of the Main Enclosure of Ako Castle

The layout of Ako Castle, from the signboard at the site, adding the red English letters

The stone wall base for the Main Tower of Ako Castle

Naganori Asano causes Ako Incident and is fired

The Ako Incident happened in 1701 when Naganao’s grandson, Naganori Asano (also known as his official position, Takumi-no-kami) was the lord. He was in charge of entertaining the Imperial envoy to the shogun, Tsunayoshi Tokugawa in the Main Hall of Edo Castle, instructed by Yoshihisa Kira (Kozuke-no-suke). On the 14th of March when one of the most important ceremonies would be held, Asano suddenly cut Kira by using a sword at the back, trying to kill him, but failed. Asano was then arrested and ordered by the shogun to kill himself by performing Harakiri on the same day because using swords in the hall was strictly prohibited. Asano was also fired with about 300 retainers and many more of their families. On the other hand, Kira was innocent, as he was just hurt by Asano, by not using swords.

*The portrait of Naganori Asano, owned by Kagakuji Temple (licensed under Public Domain via Wikimedia Commons)*

*The portrait of Tsunayoshi Tokugawa, attributed to Mitsuoki Tosa, owned by Tokugawa Art Museum (licensed under Public Domain via Wikimedia Commons)*

The reason for Asano’s attempted murder was uncertain. Some records suggested that he said he had a grudge against Kira, but he didn’t tell what it was before his death. According to some recent studies, it was thought as the following. It was the second opportunity of entertaining the Imperial envoy for Asano, so he would think he doesn’t need to pay so much for the instruction from Kira, though Asano was rich because of the income from the salt industry. While Kira would need more money for his duty but unfortunately he didn’t have enough of it because he was poor dispite having a higher position. These resulted in Kira might not having instructed Asano and might have criticized him in public. If they are true, who would generally cause such a serious incident? Some, including those at that time, have thought that Asano was going mad.

The ruins of the Main Enclosure of Edo Castle where the incident happened

The miniature model of the Main Enclosure Main Hall of Edo Castle, exhibited by the Edo-Tolyo Museum

47 Ronin assaults Kira’s Residence

The retainers of the Ako Domain were very confused to hear about the incident and the following order of opening Ako Castle by the shogunate. They discussed protesting against the shogunate’s decision or simply handing the castle over following the order. Some warriors who served Asano closely never accepted the decision and thought their master must have had a reason. Yoshio Oishi (Kura-no-suke), who was the head of the senior vassals, finally decided to open the castle on the 12th of April. He thought the shogunate might allow Naganori’s brother, Daigaku to follow the domain if they would behave.

*The portrait of Yoshio Oishi, owned by Ako Oishi Shrine (licensed under Public Domain via Wikimedia Commons)*

Unfortunately, this didn’t happen. The shogunate decided to banish Daigaku to the head family of the Asano Clan at Hirosima Castle. Oishi eventually became the leader of the 47 Ronin under the influence of the hardliners, which attacked Kira’s residence and killed him on the 14th of Dec in 1702 (according to lunar calendar). Oishi left his verbal notice at the site, which says they would do this to complete their master’s work. They were all arrested but it became complicated and cabinet officials of the shogunate discussed how they would treat the Ronin. Some said the Ronin should be executed strictly because they broke the law by assaulting Kira’s residence and killing the innocent man. Some argued that they were real loyal retainers to show a mirror of knighthood. The shogun, Tsunayoshi’s decision was to compromise both opinions to make the Ronin kill themselves by Harakiri. This was the same judgement as their master’s, but very honorable for their positions and actions.

A Ukiyoe-painting of the assaulting Kira’s Residence, attributed to Kuniyoshi Utagawa *(licensed under Public Domain via Wikimedia Commons)*

Domain and Castle is followed by Other Clans

Ako Castle and the Ako Domain was followed by the Nagai Clan and the Mori Clan. The Mori Clan governed the area for a long time from 1706 until 1871 when the feudal domain system was abolished. The salt industry of Ako prospered more and the salt fields increased looking like they surrounded the castle. On the other hand, the domain by the Mori Clan faced financial difficulties because they had much less territory than the Asano Clan. For example, the former residence of Oishi in the Third Enclosure was burned down in 1729, but not rebuilt. This was probably because the domain had fewer retainers and budget than before so that they wouldn’t use the residence again.

To be continued in “Ako Castle Part2”

18.Hachigata Castle Part1

Hachigata Castle was located in modern day Yorii Town in the northern part of Saitama Prefecture. The castle was prominent both when the Sengoku Period of the Kanto Region started and ended.

Location and History

Hachigata Castle was located in modern day Yorii Town in the northern part of Saitama Prefecture. The castle was prominent both when the Sengoku Period of the Kanto Region started and ended.

Beginning of Sengoku Period in Kanto Region

The location of the castle

The region ran into the unquiet Sengoku Period in 1455 when the Kyotoku War began. The Ashikaga Clan, the shogunate head for the Kanto Region and the Uesugi Clan, the shogunate deputy for the region opposed and confronted each other at the Tone River, the largest river in the region. The Uesugi Clan constructed Ikkako Encampment at the western riverside and used it for over 20 years. The clan actually consisted of two branch clans, the Yamanouchi and the Ogigayatsu Clans. Each branch clan also had a main retainer to control many warriors and matters from the Nagao Clan for the Yamanouchi and the Ota Clan for the Ogigayatsu. One of the main retainers, Kagenobu Nagao died in 1473 before his position was assigned by his boss, Akisada Yamanouchi to his little brother, Tadakage.

The yellow area was influenced by the Uesugi Clan and the purple area was influenced by the Ashikaga Clan at that time, from the signboard at the site

Kageharu Nagao builds Castle

This was a reasonable decision, because Tadakage was considered as a senior and experienced person. However, Kagenobu’s son, Kageharu thought otherwise, as the position was inherited by his grandfather and father. Kageharu left the encampment, built Hachigata Castle in 1475, and started a rebellion in 1476. The castle was built on a high cliff at the meeting point of Arakawa River, another large river in the region, and Fukasawagawa River, a peninsula affording natural defense. Though the details of the first stage of the castle are unknown, it would have been easy for Kageharu to attack the Ikkako Encampment which had no guard on its southern side (which faced the castle). Many other retainers, who worried about their own positions in the new power hierarchy, supported Kageharu. The encampment finally collapsed in 1477.

The family crest of the Nagao Clan, called Kuyou-Tomoe (meaning the nine comma-shaped figures)

The relief map around the castle

The Arakawa River and the cliffs behind, where the castle was built

What Kageharu really wanted was unclear, but he tried to get many territories with his supporters and the Ashikaga Clan with whom Kageharu took sides. Kageharu was an excellent general. However, the other main retainer for the Ogigayatsu, Dokan Ota was superior to him. Dokan, who is known for building Edo Castle, which would become the center of the government during the Edo Period , and is now the Imperial Palace, was also a great strategist and politician. Dokan captured the Kageharu supporters’ castles, such as Kozukue Castle, one by one. He also made brokered a fragile peace with the Ashikaga Clan, which drove Kageharu back to his home base, Hachigata Castle. Dokan finally attacked and captured the castle in 1478, so Kageharu was forced to flee. Dokan became the greatest lord in the Kanto Region, however, he was killed in 1485 by his master, Sadamasa Ogigayatsu who feared his power. The region became unstable again and Kageharu continued to fight against his masters, the Yamanouchi, throughout his life as a soldier of fortune. He finally settled down under Sozui Ise, the founder of the Hojo Clan, until his death in 1514.

The portrait of Dokan Ota, owned by Daijiji Temple (licensed under Public Domain via Wikimedia Commons)

The ruins of Edo Castle (the current Imperial Palace)

The replica of the portrait of Soun Hojo, owned by Odawara Castle (licensed under Public Domain via Wikimedia Commons)

Castle becomes Hojo’s Branch

Hachigata Castle was occupied by the Yamanouchi for a while, but eventually abandoned. The power of the Uesugi Clans (Yamanouchi and Ogigayatsu) decreased while the Hojo Clan invaded the Kanto Region during the 16th Century. The Hojo Clan was based in Odawara Castle in Sagami Province (now Kanagawa Pref.) and they set several important branch castles where the Hojo’s relatives were sent to govern the region’s stability. Hachigata Castle was chosen as one of the castles as its location was at the northern edge of their territory. Ujikuni Hojo became the lord of the castle in 1568 and struggled to keep. For example, when the Hojo Clan allied with Kenshin Uesugi who was the successor of the Yamanouchi and one of the strongest warlords, Ujikuni was charged with negotiating with him. However, once the alliance was broken, Kenshin attacked Hachigata Castle, set fire to its castle town, and withdrew.

The family crest of the Hojo Clan, called Hojo-Uroko (meaning the squames of the Hojo)

Ujikuni Hojo, Last Lord of Castle

To survive under these severe conditions, Ujikuni greatly improved the castle. The castle’s defenses were naturally strong, having been built on a tall cliff, sandwiched by the two rivers to the north, the east, and the west. It also had many enclosures made of soil, mainly including the Main, Second and Third Enclosures in a line from north to south. Therefore, enemies would have to attack the Third Enclosure first from the south. To prevent attack, these enclosures were divided by deep dry moats and surrounded by high, thick earthen walls. Part of the walls were supported by stone mounds looking like stone walls. The entrances of the enclosures were protected by a set of gates and the Umadashi system. The Umadashi system refers to a connected smaller enclosure in front of the gate, connected by a narrow path to the larger enclosures. The position could be used to both protect the enclosure and attack from it.

The diorama of the castle at the site, viewed from the north

The history of the castle suddenly ended in 1590 when the ruler, Hideyoshi Toyotomi invaded the Kanto Region as the Hojo’s territory to complete his unification of Japan. He went there with over 200,000 soldiers and about 35,000 of which, attacked Hachigata Castle in May, led by Toshiie Maeda. Ujikuni, along with about 3,000 defenders, was besieged for a month. The attackers didn’t assaulted the castle, directly, instead, it is said that they fired large guns from Kuruma-yama Mountain, about 1 km away from the Main Gate of the castle to the south. Ujiie finally surrendered and opened the castle in June, perhaps because there was no hope for reinforcements, or due to the damage from the guns. The castle passed to the Tokugawa Clan, who now ran the region instead of the Hojo Clan, however, it was eventually abandoned at the end of the Sengoku Period.

The Kuruma-yama Mountain seen from the Outer Enclosure

To be continued in “Hachigata Castle Part2”