72.Yoshida-Koriyama Castle Part2

You can realize the Mori Clan’s long history by walking along the tour route.

Later History

After Yoshida-Koriyama Castle was abandoned, the Asano Clan managed to own its area during the Edo Period. This was because the Mori Clan’s territory had been reduced due to the their lost in the Battle of Sekigahara in 1600. The Asano Clan destroyed the stone walls of the castle after the Shimabara Rebellion in 1637. The Tokugawa Shogunate ordered the lords in western Japan to do it so that even abandoned castles would not be reused by other rebels.

The destroyed stone walls of the Third Enclosure

By contrast, the grave of Motonari Mori, which was built at part of the castle by his grandchild, Terumoto Mori, has been maintained. The Asano Clan allowed the lord and warriors of the Choshu Domain by the Mori Clan to pay a visit to the grave. As a result, warriors of other domains also visited it as the holy spot for a great warlord. After the Meiji Restoration, the grave was developed further, gathering the graves of other ancestors of the Mori Clan probably because the Choshu Domain was one of the victorious clans of the restoration. The castle ruins have been designated as a National Historic Site since 1940.

The grave of Motonari Mori in the castle

Features

Going to Entrance of Castle Ruins

Today, if you drive to the area around the ruins of Yoshida-Koriyama Castle, you will find some names of the local area like Katsura and Fukuhara. They are the origins of the Mori Clan’s senior vassals until the end of the Edo Period. History fans might be excited to just see them.

The map around Yoshida Town, Akitakada City

There is the tour route which is recommended by officials. Its starting point is the shrine gateway of Motonari’s grave, beside the parking lot at the foot of the mountain. If you walk along the approach towards the grave for a while, you will reach it. This may be the most developed place in the castle ruins as the holy spot. There is also Toshunji Temple Ruins which was established by Terumoto there and eventually moved to Hiroshima, Hagi and Yamaguchi with the lords of the Mori Clan.

The map around the castle

The shrine gateway of Motonari’s grave
The approach towards the grave
The grave of Motonari
Toshunji Temple Ruins

Trail on Ridge of Mountain

You can climb the trail to the top of the mountain from there, on one of its six ridges. It is basically a long trek which takes about 30 minutes to reach the top. You may find some ditches dividing the enclosures or wild animals like deer. Be careful not to provoke them.

The starting point of the trail
The trail goes on the ridge
A ditch dividing the enclosures
Meeting with a deer

Enclosures on Top of Mountain

You will eventually arrive at the ruins of Okurayashiki or the Storehouses below the top. The top consists of three tiered enclosures of the Main, Second and Third. The six ridges spread from the top which also have so many enclosures.

The ruins of the Storehouses
The topographical map of the mountain top, from the signboard at the site, adding the red letters

You will find countless stones collapsed which lie around the Storehouses Ruins. It is thought that this was caused by the Asano Clan following the shogunate’s instruction after the Shimabara Rebellion. These stones have been left there for nearly 400 years. However, if you walk around the wall of the Third Enclosure, you will notice some stone walls remaining as they were.

The collapsed stones lying around the Storehouses Ruins
Some remaining stone walls of the Third Enclosure

You can also walk around some enclosures on the six ridges such as Tsurii or the Deep Well, Umaya or the Stable, and Kamaya or the Kitchen. There will be a sign warning visitors not to enter that unstable area. Please make you don’t enter that area since it’s very unstable and could cause the land to collapse. Watch your steps as they are reclaiming to nature.

The Deep Well Enclosure
The Stable Enclosure
The ridge over the Stable Enclosure
The Kitchen Enclosure
Sone ridges are not allowed to enter as of October 2022

To be continued in “Yoshida-Koriyama Castle Part3”
Back to “Yoshida-Koriyama Castle Part1”

72.Yoshida-Koriyama Castle Part1

The castle grew as Motonari Mori got more power.

Location and History

Home Base of Generations of Mori Clan

Yoshida-Koriyama Castle was located in Aki Province which is modern day the western part of Hiroshima Prefecture. It was also located in a central mountainous area in the Chugoku Region. It started off as a small mountain castle on one ridge of Koriyama Mountain, which was built by a local lord of the Mori Clan sometime in the Middle Ages. The lord of the clan in the Sengoku Period, Motonari Mori developed the castle covering the whole mountain as he governed almost all the region, he became a great warlord.

The range of Aki Province and the location of the castle

The Mori Clan had been basically a typical local lord which governed Yoshida manor since the 13th Century. As time passed by, their relatives became the clan’s senior vassals such as the Fukuhara and Katsura Clans. Even in the beginning of the 16th Century during the Sengoku Period, the lord of the clan lived in the small Yoshida-Koriyama Castle while the senior vassals lived in their own castles or halls. On the other hand, they had a strong allegiance. This was one of the reasons why they were finally successful in the region.

The relief map around the castle, the home bases of the senior vassals were in different places from the castle

Motonari has many Difficulties

When Motonari first entered Yoshida-Koriyama Castle to become the lord of the clan in 1524, the situation was already bad. The previous lords all died young, as a result, the power of the clan continued to decrease. In addition, the Aki Province was divided by about 30 small local lords like Motonari. Meanwhile, strong warlords were growing in power as the Ouchi Clan in Suo Province, west of Aki, and the Aamago Clan in Izumo Province, north of Aki. The local lords in Aki had to support either clan, otherwise, they would have been defeated. The Mori Clan supported the Amago Clan, however, the clan tried to remove Motonari from being the successor and supported another person whom they can easily control. However, Motonari somehow survived with his senior vassals’ support.

The portrait of Motonari Mori, owned by Mori Museum (licensed under Public Domain via Wikimedia Commons)
The portrait of Tsunehisa Amago, the lord of the clan at that time, owned by Doukouji Temple (licensed under Public Domain via Wikimedia Commons)

To survive under these difficult situations, Motonari acted like a mediator, not a ruler, in his province. For example, he proposed making a peace treaty with the competitive Shishido Clan in his province by marrying his daughter with the clan’s successor. The clan eventually became another senior vassal of Motonari. He also made alliances with local lords in Aki and Bingo (east of Aki) Provinces with a round-robin contract. A round-robin contract is an equal opportunity for everyone involved with no true leader. He always managed to persuad his three son’s Takamoto, Motoharu and Takakage to be united for the clan’s prosperity (That would create the popular episode, called Three Arrows, sometime later. It refers that Motonari tried to demonstrate the strength of teamwork by using arrows. First, he asked them to break one arrow which was easy. However, when he asked them to break all three arrows at the same time, it was impossible. This was to show his 3 sons that working together was better than working independently.). After that, he sent Motoharu and Takakage as the successors of the Kikkawa and Kobayakawa Clans which also became his relatives. However, he sometimes decided to fight, for instance, when he defeated his senior vassal, the Inoue Clan because they got out of control.

The portrait of Takamoto Mori, owned by Joeiji Temple (licensed under Public Domain via Wikimedia Commons)
The portrait of Takamoto Mori, owned by Waseda University Library Temple (licensed under Public Domain via Wikimedia Commons)
The portrait of Takakage Kobayakawa, owned by Beisanji Temple (licensed under Public Domain via Wikimedia Commons)

A big crisis came to Yoshida-Koriyama Castle in 1540 after Motonari changed his allegiance from the Amago Clan to the Ouchi Clan. The Amago Clan with about 30 thousand troops surrounded the castle in September. The castle seemed to look small, but Motonari was besieged with about 8 thousand people including warriors and farmers for 4 months, waiting for the reinforcement from the Ouchi Clan. It finally came in December before the Amago troops had to withdraw. This failure of the Amago Clan was said to be the first sign of their destruction which was done in the battle of Gassan-Toda Castle in 1566 by Motonari.

The portrait of Haruhisa Amago, the lord of the clan at that time, owned by Yamaguchi Museum (licensed under Public Domain via Wikimedia Commons)
A distant view of the ruins of Yoshida-Koriyama Castle
A distant view of Aoyama (on the left) and Mitsuiyama (on the right) Mountains where the Amago troops encamped
The ruins of Gassan-Toda Castle

Retainers gather on Whole Mountain

After that, Motonari became a great warlord through many battles, schemes and tricks, such as the Battle of Miyajima against the Sue Clan which followed the Ochi Clan in 1551. During his enterprise, he appointed the his son, Takamoto to be the new leader in 1546, but he still had the power. He moved from the ridge where the castle was first built to the top of the mountain, which would be called the Main Enclosure. Takamoto continued to live in the ridge, which would be called Honjo or the Main Castle, instead of Motonari. However, he eventually moved closer to Motonari by building a new enclosure because it was tough for him to communicate with his father by coming and going. Other retainers also got together on the mountain, as a result, the castle had about 270 enclosures over the mountain as the clan got more power.

The locations of the top and the Main Castle, from the signboard at the site, adding the red letters
“The whole illustration of Koriyama”, owned by Yamaguchi Prefectural Archives, from the signboard at the site

Motonari’s grandchild, Terumoto moves to Hiroshima

After the deaths of Takamoto in 1563 and Motonari in 1571, Takamoto’s son, Terumoto Mori followed them. He also improved and modernized the castle by building stone walls, however, he built and moved to his new home base, Hiroshima Castle in 1591. Yoshida-Koriyama Castle was eventually abandoned.

The portrait of Terumoto Mori, owned by the Mori Museum(licensed under Public Domain via Wikimedia Commons)
The present Hiroshima Castle

To be continued in “Yoshida-Koriyama Castle Part2”

74.Iwakuni Castle Part3

The attractions of the Northern Enclosure few people visit

Features

Northern Enclosure remains destroyed

The real highlight of the original Iwakuni Castle is, in fact, the Northern Enclosure which few people visit. You can exit the Main Enclosure through the path beside the stone wall base. Then, you can pass the route across the large dry moat between the Main and Northern Enclosures. This was built by the founder, Hiroie Kikkawa to protect the Main Enclosure from sudden attacks of enemies.

The map around the mountain part

The path beside the stone wall base
The dry moat between the Main and Northern Enclosures
The earthen bridge across the dry moat

The inside of the Northern Enclosure is a square now, but if you climb down from it and walk around outside of it carefully, you may be surprised to see what you find. Lots of large stones collapsed and lie around the western side. On the other hand, its stone walls are still intact around the eastern side. This is because of how the Kikkawa Clan destroyed the mountain part of the castle. The clan at first destroy only the buildings of it, however, after the Shimabara Rebellion in 1638, the shogunate ordered the lords in western Japan to destroy unused castles completely. The clan had to do it by destroying part of the stone walls, but left the rest of them probably to protect the people living in that area.

The Northern Enclosure
Around the western side of the Northern Enclosure
Around the eastern side of the Northern Enclosure

Foot Area

The former residence at the foot is still surrounded by the Inner Moat, which is now the Kikko Park. Kikko Shine was moved into the park. The main buildings of the shrine are an Important Cultural Property. A Ema-do building (where votive picture tablets are hung) called Kinunkaku stands like a turret at a corner, which was built when the park was established.

The map around the foot area

The Kikko Park
The main buildings of Kikko Shine
Kinunkaku looking like a turret

Some original warriors’ houses remain around the area where you can enjoy walking, seeing, and relaxing.

The remaining Mekata Clan’s residence as an Important Cultural Property

My Impression

I think that Hiroie Kikkawa was a TrulyValiant who could make a decision of not fighting. Many of the Mori Clan at that time and some history fans today have complained that the clan could be a ruler if Hiroie fought in the Sekigahara Battle like I used to imagine. However, it must have been a gamble. The Mori Clan actually survives until today thanks to Hiroie’s decision. He was a far-sighted excellent leader. Iwakuni Castle also survives by practically responding to demands of society like Hiroie’s way of life. That’s why the castle site still prospers with Kintaikyo Bridge.

It may be better to use the wide path in the western part of the castle when you return
A Large Well called Otsurii in the part
The stone walls in the western part seemed to be all demolished
The eastern part still has great stone walls like ones below the Main Enclosure in the photo above

How to get There

If you want to visit there by car, it is about 20 minutes from Iwakuni IC on the Sanyo Expressway. There are several parking lots around.
By public transportation, you can take a bus bound for Kintaikyo from Iwakuni Station or Shin-Iwakuni Station and get off at the Kintaikyo bus center.
From Tokyo or Osaka to Iwakuni Station: Take the Sanyo Shinkansen super express and transfer to the Sanyo Line at Hiroshima Station.
From Tokyo or Osaka to Shin-Iwakuni Station: Take the Sanyo Shinkansen super express.

Iwakuni Castle and Kintaikyo bridge

Links and References

Kintaikyo-Bridge, Iwakuni City Homepage

That’s all. Thank you.
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