84.Kochi Castle Part2

You can sense the original state of the castle.

Features

Spot for seeing both Main Tower and Main Gate

As a visitor to Kochi Castle today, you will likely enter the remaining Main Gate first, where you can also see the remaining Main Tower over there. In fact, this is a very rare spot where you can see the two kinds of remaining buildings together in Japan.

The Main Tower and Main Gate of Kochi Castle
The Main Gate

The aerial photo around the castle

From Suginodan Enclosure to Iron Gate Ruins

After entering the gate, you can climb on the stone steps to the Suginodan Enclosure where the statues of Kazutoyo Yamanouchi’s wife, called Chiyo, and a horse stand. These statues show that she spent her dowry to buy a fine horse for Kaszutoyo’s parade which was the chance for his promotion. You can also see the great high stone walls of the Third Enclosure above.

The stone steps to the Suginodan Enclosure
The statues of Chiyo and the horse
The high stone walls of the Third Enclosure

If you go further by climbing the stone steps, you will be at the ruins of the Iron Gate which was an important point for defense. The gate was next to the Third Enclosure and led to the Second Enclosure. That’s why the tricky system which could lead enemies to the false gate to the Main Tower, called Tsumemon, was built.

The ruins of the Iron Gate
The Tsumemon Gate seen from the iron Gate Ruins

Third and Second Enclosures

The Third Enclosure is the largest enclosure in the castle where a large building for ceremonies was in the past. In addition, the stone walls of Chosogabe’s period were found there by excavation.

The Third Enclosure
The stone walls of Chosogabe’s period
The Main Tower seen from the Third Enclosure

The Second Enclosure had another Main Hall for the lord where he usually lived, as the hall in the Main Enclosure was too small for daily life. However, the Second Enclosure is just a square now.

From the Iron Gate Ruins to the Second Enclosure
The Second Enclosure

Main Enclosure, almost same condition as original

You can finally reach the Main Enclosure by crossing the remaining Tsumemon Gate from the Second Enclosure. Surprisingly, this enclosure is in almost the same condition as its original, with the 11 remaining buildings. This is also the only spot where the original Main Tower and Main Hall remain at the same place in Japan.

Going to the Tsumemon Gate from the Second Enclosure
The buildings of the Main Enclosure seen from the Main Tower

You will need to enter the Main Hall first to reach the Main Tower as they are directly connected to each other. The hall is not large because the space of the enclosure is limited, but important ceremonies for the domain were held there.

The entrance of the Main Hall
The interior of the Main Hall

The Main Tower has four layers and six stories, that means two of the stories are attics (3F and 5F). Its style is called the lookout tower type. In the case of Kochi Castle, there is the small two-layer lookout tower on the large two-layer turret with a hip-and-gable roof. The tower also has decorations like Chinese style gables and triangular shaped gables on the roof and a veranda with the lacquered handrail at the top floor. It looks traditional and very beautiful.

The Main Tower of Kochi Castle

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

84.Kochi Castle Part1

The Yamanouchi Clan’s unique castle

Location and History

Pre History of Kochi Castle

Kochi City originated from the name Kochi Castle and is the capital of Kochi Prefecture on Shikoku Island. Kochi Castle is one of the most popular tourist spots of the prefecture. It has many remaining castle buildings including the Main Gate, the Main Hall, and the Main Tower. The castle was built on a low mountain called Mt. Otaka-sakayama, but it is uncertain when it was first built. In 1588, Motochika Chosogabe, the lord of Tosa Province, what is now Kochi Prefecture, moved his home base from Okoh Castle to Kochi Caste, which was called Otaka-sakayama Castle at that time. However, he moved again to Urado Castle after only a three-year stay in Otaka-sakayama Castle. This could be because the area received a lot of rain but had poor drainage.

The location of the castle

The portrait of Motochika Chosogabe, owned by Hada Shrine (licensed under Public Domain via Wikimedia Commons)
The ruins of Okoh Castle
The ruins of Urado Castle

Kazutoyo Yamanouchi built Kochi Castle

In 1601, Kazutoyo Yamanouchi was promoted by the Tokugawa Shogunate to a new lord of Tosa Province and became the founder of the Tosa Domain. He tried to rebuild and live in Otaka-sakayama Castle which had enough space to build the castle town. The castle was rebuilt with advanced technology at that time, such as building stone walls and large-scale buildings. After the completion of the castle, it was renamed Kochi Castle. As a result, the Yamanouchi Clan governed the castle and the province all through the Edo Period.

The statue of Kazutoyo Yamanouchi in front of Kochi Castle
Part of the illustration of Kochi Castle in Tosa Province, in the Edo Period, exhibited by the National Archives of Japan
The miniature model of Kochi Castle in its Main Tower

Features of Kochi Castle

Kochi Castle had several interesting features. First, the castle had a lot of stone troughs to allow for proper drainage if it rained a lot. Such a system was very rare for castles in Japan and can even now be seen when you visit the castle.

One of the stone troughs on the stone walls

Secondly, the castle had an old-style Main Tower, called the lookout tower type, for the period of its construction. It is said that Kazutoyo wanted to build the Main Tower resembling the Main Tower of Kakegawa Castle, where he lived before he went to Tosa Province. For this reason, when people in Kakegawa restored the Main Tower of Kakegawa Castle in the present time, they used the design plans of the remaining Main Tower of Kochi Castle.

The restored Main Tower of Kakegawa Castle, taken by Oshiro-man from photo AC
The remaining Main Tower of Kochi Castle

Most of the castle buildings including the Main Tower were unfortunately burned down by a great fire in 1727. When the Tosa Domain rebuilt the castle after the fire, they restored the Main Tower in 1749 in a way which was almost the same as the original one, not using a new style. This could be because the shogunate just allowed the domain to use the original style even for rebuilding. It is also said that the warriors in the domain still loved the style of their founder, Kazutoyo. The Main Tower also didn’t stand on a stone wall base and was connected directly to the Main Hall in the Main Enclosure on the top of the mountain. It is thought that this is also one of the styles of old castles.

The Main Tower, connected directly to the Main Hall

The castle also had a feature using both buildings and natural terrain of the mountain for defense. If enemies attacked the castle to reach the Main Tower, they had to pass through the Suginodan Enclosure and the Second Enclosure which were built around the slope of the mountain. In addition, if enemies passed the Iron Gate before the Second Enclosure, they could be near the Main Tower and see the Tsumemon-Gate which looked like the gate to the tower. However, it was just a bridge between the Main Enclosure and the Second Enclosure, which the enemies could never go across from that point. This is a tricky system to prevent enemies from reaching the center of the castle.

The route from the Main Route to the Main Enclosure and Main Tower (The illustration of Kochi Castle adding the red colored letters)
The remaining Tsumemon Gate
The Main Tower that can be seen close from the front of the Tsumemon Gate

To be continued in “Kochi Castle Part2”

180.Okoh Castle Part3

The Ichiryo-Gusoku group and their reappearance

Features

Walking around Castle Ruins

The Enclosure which was supposed to be a Former Stable is a little far from the main portion of the castle. It was used as a lookout as well.

The map around the castle

The Enclosure which was supposed to be a Former Stable

The castle also had many dry moats dug on the mountain in both vertical and horizontal directions to prevent enemies from attacking. You can still see some of them remained.

A vertical dry moat
A horizonal dry moat

The castle ruins now have many routes like network and many enclosures for stop and rest, so you can enjoy walking and relaxing as well as learning history.

Some of the routes going around the castle ruins
A view from the Enclosure which was supposed to be a Former Stable

Later History

After Okoh Castle was abandoned, the Chosogabe Clan was unfortunately fired by the Tokugawa Shogunate. The Yamanouchi Clan from Kakegawa Caste came to govern Tosa Province and lived in Kochi Castle. The remaining Ichiryo-Gusoku group suffered from the Yamanouchi high-class warriors as the low class ones during the Edo Period. However, due to their rebellious spirit, some heroes in the Meiji Restoration such as Ryoma Sakamoto and Shintato Nakaoka appeared from the low class to change Japan later.

The portrait of Ryoma Sakamoto, published in a book called Kinsei Meishi Shashin vol.2 (licensed under Public Domain via Wikimedia Commons)
The photo of Shintaro Nakaoka, published in a book called Ishin Tosa Kinnoshi (licensed under Public Domain via Wikimedia Commons)

As for the castle ruins, they were first developed as a normal park with cherry trees planted. The excavation was done between 1985 and 1990. Since then, the ruins have been developing as Okoh Mountain Historical Park. They were finally designated as a National Historical Site in 2008. In addition, Kochi Prefectural Museum of History was built beside the park in 1991, where you can learn more about the castle and the Chosogabe Clan.

The monument of the castle ruins

My Impression

I recommend visiting the three Chosogabe’s home base castles at once because they are close to each other. Kochi Castle basically remains as the Yamanouchi Clan’s legacy now, but the castle’s hill still has many tiers like Okoh Castle, probably it came from Chosogabe’s period. Though the ruins of Urado Castle were mostly destroyed by modern facilities, you can still see the great ocean view of Katsurahama Beach and the famous statue of Ryoma Sakamoto nearby.

Kochi Castle
Kochi Castle also has many tiers
The ruins of Urado Castle
Katsurahama Beach
The statue of Ryoma Sakamoto (taken by 末っ子魂 from photoAC)

How to get There

I recommend using a car when you visit the ruins.
It is about 10 minutes away from Nankoku IC on the Kochi Expressway.
The park offers a parking lot.
If you go there from Tokyo or Osaka, I recommend going there by plane. When you get there, it’s better to rent a car as there are few buses in the area.

The parking lot beside the park

Links and References

National Historical Site: Oko Castle Ruins, Kochi Prefectural Museum of History

That’s all. Thank you.
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