Today, the ruins of Tamaru Castle have been maintained by Tamaki Town and still located in the center of the town. The ruins of the Main Gate behind the remaining Outer Moat are also the entrance of the ruins and the town hall. The route on the entrance is paved and straight, not like the originally bent road, probably because of convenience for cars. If you drive to the ruins, you can use the parking lot of the hall.
The map around the castle
The Outer Moat in front of the Main Gate RuinsThe Main Gate Ruins
The paved road goes up to the hill passing through the Second Gate Ruins surrounded by stone walls and the partially remaining Inner Moat. The route is still bent similar to the original one. Next comes the Third Enclosure in the past, however, the present route goes around it which is used as a school. You can see one of the few remaining buildings of the castle, the Fujimi-mon Gate, which had been sold, but moved to the present position, not like in the original one, on the way.
The partially remaining Inner MoatThe Second Gate RuinsThe Third Enclosure Ruins which is used as a schoolthe Fujimi-mon Gate which was moved to the present position
You can enjoy both Earthen and Stone Walls at Northern Enclosure
You can go directly to the Main Enclosure along the way but you should consider going the separate promenade around the Northern Enclosure. This is because you will be able to feel the long history of the castle when you see it. It is surrounded by old stone walls, and earthen walls outside. Earthen walls were commonly used in the Middle Ages before stone walls were used, so the earthen walls might have been built in the early stage of the castle.
The entrance of the promenade around the Northern EnclosureGoing on the promenadeThe earthen walls of the Northern Enclosure outside
The stone walls also look like those of Azuchi Castle, one of the earliest examples of stone walls for castles, which Nobukatsu’s father, Nobunaga built. You might think the stone walls were built by Nobukatsu, but historians point out most of the castle’s stone walls were built by the Inaba Clan.
The stone walls of the Northern EnclosureThe combination of stone and earthen walls of the Northen EnclosureThe ruins of Azuchi Castle
Main Enclosure has several Attractions
Going back to the main route, the paved road reaches the Main Enclosure, so you can easily enter it. Its alternating entrance surrounded by stone walls, called Koguchi, which was restored in the present time based on the achievements of the excavation.
The route to the Main EnclosureThe entrance of the Main EnclosureA view of the entrance from above the stone walls
One of the highlights of it is the stone wall base for the Main Tower. Part of it such as the stone steps were added later than the original. However, the basic type, called Anagura-siki or the Cellar Type, is a very early method for Main Tower bases. Historians say the base might have been built by Nobukatsu.
The inside of the Main EnclosureThe stone wall base for the Main TowerThe inside of the base (the Cellar Type)
The second one has a good view of the town from it. The area around the town looks rich and peaceful, probably the same as in the past. That proves the good location of the castle.
A view from the Main Enclosure
The rest is the stone walls surrounding the enclosure, you can look around. They look newer and more processed than those of the Northern Enclosures, so the Kuno Clan might repaired them.
The stone walls of the Main EnclosurePart of the stone walls were made with two tiers
Today, the ruins of Genbao Castle have been well developed as a National Historic Site, even if they were at the top of a mountain. There are no castle buildings and only the foundations made of soil remained. However, it is good enough for us to understand what the castle was like because it was a specific battle castle. To reach the castle ruins, you need to walk for about 30 minutes from the parking lot. You will pass the old mountain pass called Tone-toge and climb the mountain where the castle was built.
From the parking lot to the trailthe Tone-toge mountain pass
The mountain looks natural being covered by woods and bushes around the trail, so you may be wondering if the castle ruins were built in such a place. However, you will eventually reach where the castle ruins are more visible. This is because officials or volunteers would often cut down trees and bushes in order for people to see the ruins clearly.
The trail will go for a whileThe castle ruins will eventually become visible
Complex route to Center of Castle
The trail to the castle ruins is from the south, which was the front side of the castle. You can still see the side was strongly protected. The enclosure you first meet is called the Enclosure I which is surrounded by earthen walls. The entrance of the enclosure is not open to the front in the south, but the left side in the west. That means you need to walk around the walls and turn right.
The map around the castle
The entrance of the Enclosure IThe inside of the Enclosure ILooking back the entrance of the Enclosure IThe route to the Enclosure I (the red arrow) and the counterattack from the enclosure (the blue arrow)
To get to the next one called the Koguchi Enclosure, you will have to walk on the narrow earthen bridge beside a ditch, and after that turn left.
the narrow earthen bridge to the Koguchi EnclosureThe ditch beside the earthen walls limits the route for enemies to attackThe inside of the Koguchi EnclosureThe route to the Koguchi Enclosure (the red arrow) and the counterattack from the enclosure (the blue arrow)
The Main Enclosure is the next area, but one of its Umadashi Enclosures is in front of it to prevent anyone from entering directly. You need to turn right again from the Koguchi, go around the Umadashi, and cut through the front entrance of the Main Enclosure. If you were an enemy, your attack route could be limited and would be attacked from the side while turning several times.
Turning right to go around the Umadashi EnclosureThe earthen walls in front of the Main Enclosure are also narrowThe Umadashi Enclosure seen from behindThe route to the Main Enclosure (the red arrow) and the counterattack from the enclosure (the blue arrow)
Main Enclosure controls all directions
The inside of the Main Enclosure is a square, which is also surrounded by earthen walls. There is the earthen mound at the northeastern corner where the Main Tower or a large turret was built.
The inside of the Main EnclosureThe turret base at the northeastern corner
It has the other Umadashi Enclosure in front of the back entrance in the north. It also has a small entrance in the east with the Overhang Enclosure in front of it. The east of the Main Enclosure is a slope of the mountain. Historians say this structure proves the builders thought enemies could also attack from this direction as well. The west of it is a very deep valley which was difficult for enemies to attack from. However, a ditch was elaborately built in front of the earthen walls on this side.
The location map of the Main Enclosure, adding red English lettersThe northern Umadashi EnclosureThe Overhang Enclosure at the eastern sideThe steep slope at the western side
Border Castle between Northern and Southern Omi Province
Kamaha Castle was a mountain castle during the Sengoku Period, which was located in Omi Provence (currently the modern day location of Shiga Prefecture). Its position was in the central area of the province, which at the time was divided into two parts, the northern part and the southern part. As a result, the two warlords from the Rokkaku Clan in the south and the warlord from the Azai Clan in the north were constantly gaining and loosing castles each other. Kamaha Castle was built on one of the ridges, which was 384 meters high, of Mt. Ryozen,. The name “Kamaha” which means “Sickle Blade” got its name from the shape of the ridge with its steep sides. The castle was located near a major road called “Nakasendo”, which was conveniently located for battle making it easier for transportation as well.
The range of Omi Province and the location of the castle
城周辺の起伏地図
In the middle of the 16th Century, during the Sengoku Period, the Hori Clan was the ruler of the castle. The clan frequently changed their masters depending on the situation. In one instance, back in 1553, the Rokkaku Clan attacked Kamaha Castle, forcing the Hori Clan to escape, eventually surrendering the castle completely. However, the Hori Clan would eventually form an allegiance with the Azai Clan, most likely because the Azai Clan was gaining a lot of power at that time. Back in 1570, The Azai Clan fought Nobunaga Oda, where Hidemura Hori sided with Nobunaga who was easily persuaded by Hideyoshi Hashiba, the eventual ruler of Japan. This was the destiny of lord of the border castle.
The portrait of Nobunaga Oda, attributed to Soshu Kano, owned by Chokoji Temple, in the late 16th century (licensed under Public Domain via Wikimedia Commons)The Portrait of Hideyoshi Toyotomi, attributed to Mitsunobu Kano, owned by Kodaiji Temple (licensed under Public Domain via Wikimedia Commons)
Harsh Fate of Hidemura Hiri, Lord of Castle
Since Hidemura formed an allegiance with Hideyoshi, the Azai Clan were eventually beaten. Furthermore, Hideyoshi assisted Hidemura defend Kamaha Castle from an Azai Clan attack in 1571. This resulted in Nobunaga, Hidemura and Hideyoshi capturing Odani Castle (the home base of the Azai Clan) in 1573. A year later (in 1574) shortly after the succession, Hidemura was fired by Nobunaga due to Hidemura’s senior vassal’s failures. The primary reason for this is still unknown, but perhaps we can assume that this was purely the cruelty of Nobunaga’s character. Some historians speculate that there was a power imbalance since Hidemura was getting more powerful through his allegiance with Nobunaga. It was well-known that Hidemura accumulated more territory than Hideyoshi, who at the time was Nobunaga’s important retainer. Nobunaga might have the rebellion by Hidemura, or perhaps he wanted to take the territory for him. As the famous Chinese proverb goes “When the nimble rabbit dies, the hunting dog will be cooked”, so too was the fate of Hidemura. Finally, there is a strong belief by historians that Hidemura was hired by Hideyoshi and his brother Hidenaga in the end.
The ruins of Odani CastleThe portrait of Hidenaga Toyotomi, owned by Shungakuin Temple (licensed under Public Domain via Wikimedia Commons)
Systems of Castle improved uniquely
Kamaha Castle was finally abandoned in 1575. Some historians assumed that because the castle was made of soil, and that it was inferior to other castles, that it was abandoned sooner than other castles. However, according to a more recent excavation, it was revealed that Kamaha Castle actually had an advance system compared to other mountain castles. Kamaha Castle had at least a 3-level large turret, like a Main Tower, in the northern enclosures of the castle. This turret was thought to be used by defenders who shot arrows against attackers, as well as a large ditch located in front of it. If attackers had the misfortune of getting stuck in the ditch, it would give a clear and perfect sight for the defenders. Many enclosures were surrounded by stone walls. Moreover, the main enclosure at the center of the castle had its entrance with a square space surrounded by stone walls and steps called “Koguchi”. These types of systems were seldom seen in castles that were built after Azuchi Castle which Nobunaba built back in 1579. Based on these findings, Kamaha Castle was truly more advance than Azuchi Castle.
The imaginary drawing of the large turret of Kamaha Castle, quoted from the Kamaha Castle Official SiteThe imaginary drawing of Azuchi Castle, exhibited by Gifu Castle Museum
On the other hand, there were some differences between Kamaha Castle and Azuchi Castle as well. The large turret in Kamaha Castle was placed on earthen walls, and not on stone walls. These stone walls supported the earthen walls which prevented them from collapsing. In the case of Azuchi Castle, its main tower was built on stone walls directly. The Koguchi entrance of Kamaha Castle was designed for the gate of the main hall, and not for defense. Koguchi entrances built after Azuchi Castle exhibited more defensive capabilities, combined with complex routes. Historian often speculate that the systems used in Kamaha Castle had been improved uniquely, but was eventually replaced with other systems which were first seen in Azuchi Castle. However, the design of Kamaha Castle ‘s large turret might have been used for the main towers of other castles. This is because Hideoyoshi who would eventually build Osaka Castle included its main tower, must have seen the large turret when he worked with Hidemura at Kamaha Castle.
The stone walls of Kamaha CastleThe stone wall base for the Main Tower of Azuchi CastleKoguchi entrance ruins of Kamaha CastleThe Kocuchi entrance of the Kurogane-mon Gate of Azuchi Castle
