タグ: Sumoto castle

164.Sumoto Castle Part2

Great stone walls remain on the mountain.

Features

Castle Entrance was strictly protected

Now, the ruins of Sumoto Castle on the mountain are developed for visitors and maintain their original stone walls. If you drive to the ruins, you can easily park near the top of Mikuma-yama Mountain. The mountain has steep slopes in all directions except for the southeast direction where the diving route is on a gentle slope. For the castle, such a slope could be a weak point, so the strongest defense system in the castle was developed in this direction such as the Main Gate. In fact, the parking lot you can park was one of the enclosures called Umaya or the Stable, which protected the gate. You can also see a great view of Kii Channel to the south from here. That’s why this enclosure could have been used as an observation platform.

The map around the castle

The ruins of the Main Gate
The Stable Enclosure
A view from the Stable Enclosure

From the parking lot to the center of the castle, you will first have to walk on the narrow route along the stone walls of the Eastern Enclosure on the right, and in front of the stone walls of the Southern Enclosure. Then, you will enter the ruins of the Southern Gate of the Eastern Enclosure

The map around the castle

The narrow route to the center of the castle
The entrance is surrounded by the stone walls
The ruins of the Southern Gate of the Eastern Enclosure

If you climb up these stone walls after entering the gate, you can clearly look down the route you passed and understand how such a system protected this spot in the past.

In the case looking down from the stone walls of the Eastern Enclosure
In the case looking down from the ruins of the Corner Turret of the Southern Enclosure
The ruins of the Corner Turret of the Southern Enclosure

After that, you can reach the Main Enclosure by passing the Second Enclosure which is also surrounded by the stone walls.

The stone walls of the Second Enclosure
The entrance of the Second Enclosure

Main Enclosure, symbol of Authority

The Main Enclosure has the greatest and highest stone walls in the castle. It has the front side in the south with the Large Stone Steps and the front entrance called Koguchi. The entrance has a square space inside surrounded by the stone walls, which is also called Uchi-Masugata. You can also climb up the surrounding stone walls and look down the entrance and see the shape of the square space. It is thought that a turret gate building was built on the stone walls, which made the entrance more defensive and displayed the authority of the lord.

The map around the castle

The stone walls of the Main Enclosure
The Large Stone Steps of the Main Enclosure
The Koguchi Entrance of the Main Enclosure
Looking down the Koguchi Entrance

Imitation Main Tower, Symbol of Present Castle

The Main Enclosure also has the imitation Main Tower on the original stone wall base for the Main Tower. It was built to celebrate the enthronization of Emperor Showa in 1928 as a modern observation platform. However, it cannot be used for observation now because it has aged and could prove to be quite dangerous. Therefore, it is used as just a symbol of the castle or a landmark of the city. You can even see a great view of Sumoto city area – the former castle town, and Osaka Bay to the north under the tower. You will once again understand why this was a good location for the castle, which served to protect it and overlook the area around.

The Imitation Main Tower
The name plate installed when the tower was built
The stone wall base for the Main Tower
A view from the base

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

164.Sumoto Castle Part1

A great castle on Awaji Island

Location and History

Castle built in Independent Awaji Province

Sumoto Caste was located on Awaji Island which is between the main island of Japan and Shikoku Island with two narrow straits. Awaji Island is also surrounded by the Harima Sea, Osaka Bay and Kii Channel. The island was also near Kyoto, which was considered the center of Japan. Awaji was regarded as an important location before the Modern Times, especially for controlling and monitoring water transportation.

The location of the castle

As a result, it became an independent province and was called Awaji Province (what is now part of Hyogo Prefecture). In the 16th Century during the Sengoku Period, the Atagi Clan under the Miyoshi Clan first built Sumoto Castle for commanding navy forces. However, the Atagi Clan surrendered to the ruler, Hideyoshi Toyotomi in 1581. Hideyoshi finally sent his retainer, Yasuharu Wakizaka, to Sumoto Castle in 1585. Yasuharu governed the castle as the lord of the Sumoto Domain for 24 years until 1609 when he was transferred to Ozu Castle.

The portrait of Yasuharu Wakizaka, owned by Tatsuno Shrine (licensed under Public Domain via Wikimedia Commons)

Yasuharu Wakizawa improved Castle significantly

Sumoto Castle was originally a simple mountain castle made of soil on Mikuma-yama Mountain where the sea area around can be seen from the top. Yasuharu renovated Sumoto Castle by building stone walls and many turrets including the Main Tower on the mountain. These structures came from the typical method for building castles used by Hideyoshi and his retainers. This building method spread across the whole country during Hideyoshi’s unification of Japan. They made their castles stronger which made people recognize their authority. Yasuharu also built his main hall and the castle town at the foot of the mountain. He finally constructed a direct route made with terraced stone walls called Nobori-Ishigaki or the Climbing Stone Walls. The stone walls connected the foot and the top of the mountain. This is one of the few remaining examples of it which some lords, including Yasuharu, developed during the Imjin War in Korea for transmission or defense. He applied it to Sumoto Castle after he returned to Japan. Sumoto Castle was then considered completed.

The relief map around the castle

The stone walls of the Main Enclosure
The Climbing Stone Walls

Castle is once abandoned

However, Sumoto Castle was not used by other lords after Yasuharu was transferred. This was because Awaji Province became part of their territories and they used other castles as their branch castles in the province. Moreover, the castle was once abandoned after The Law of One Castle per Province by the Tokugawa Shogunate in 1615. All the buildings on the mountain were demolished by the Hachisuka Clan which governed Awaji Province and Awa Province (what is now Tokushima Prefecture) at that time. According to a theory, the Main Tower for Sumoto Castle was moved to Ozu Castle by Yasuharu before Sumoto Castle was abandoned. The style of the Main Tower at Ozu Castle matches one of the popular methods for main towers when Yasuharu was at Sumoto Castle.

The location of branch castles in Awaji Island

Ozu Castle

Stone walls maintained as branch of Hachisuka Clan

In 1631, the Hachisuka Clan restored Sumoto Castle as their branch castle in Awaji Province for reasons unknown. They sent their senior vassal, the Inada Clan to the castle to govern it. However, the center of the castle was set at the foot of the mountain by re-building the main hall for the lord. The mountain part had just the maintained stone walls which the Wakizaka Clan built, with few new gates added. This is probably because Sumoto Castle was a branch of Hachisuka Clan, not their home base called Tokushima Castle, but needed as a place for emergency on the mountain. This unique design was kept until the end of the Edo Period in the middle of the 19th Century.

Part of the illustration of Sumoto Castle and the castle town, in the Edo Period, exhibited by the National Diet Library, Only the stone walls already remained on the mountain
The castle ruins of the foot of the mountain(licensed by Reggaeman via Wikimedia Commons)

To be continued in “Sumoto Castle Part2”