87.Hizen-Nagoya Castle Part1

Hideyoshi’s largest and last ambition

Location and History

Huge Battle Castle for invasion of Korea

Hizen-Nagoya Castle was a battle castle to support for the invasion of Korea by Hideyoshi Toyotomi, located in the northwestern part of Kyushu Island. Hideyoshi is known as for the ruler who achieved his the unification of Japan in the late 16th Century. He completed it to by defeating the Hojo Clan at Odawara Castle, known as the siege of Odawara in 1590. However, soon after the unification, he declared he would conquer China and ordered the lords throughout Japan to prepare for it in 1591. Many lords and warriors under him also supported his plan to get more territory. They were not able to get new territory in Japan after the unification because there were no more battles.

The location of the castle

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

Hideyoshi also ordered the lords to build a battle castle on Kyushu Island near Korea, known as Hizen-Nagoya Castle. Battle castles were basically used only once and usually simple. Hideyoshi once built another gorgeous battle castle known as Ishigakiyama Castle during the siege of Odawara. However, Hizen-Nagoya Castle was much larger and stronger; it was the second largest just after Hideyoshi’s home base, Osaka Castle. The construction of the castle, divided among the lords, took only 8 months. About 120 lords gathered and also built their own military positions around the castle. The place where the castle was built had originally been a fishing village. However, it became one of the largest cities in Japan in a very short time. Nearly 200,000 soldiers were sent from the castle city to Korea, and over 100,000 people stayed in the city.

The ruins of Ishigakiyama Castle
Osaka Castle
The miniature model of Hizen-Nagoya Castle, the castle town, and some grounds for the military positions, exhibited by the Saga Prefectural Nagoya Castle Museum

Gorgeous and strong castle

Hizen-Nagoya Castle had the Main Enclosure with the five-layer Main Tower and the Main Hall at the highest position. Five routes led to the caste. The main ones were the Main Route, the Back Route and the Yamazato Route. The Main Route went from the south to the Third Enclosure in the east of the Main Enclosure via the Eastern Barbican Enclosure. The Main Gate of the Main Enclosure led to the Third Enclosure. The Back Route started from the outside of the Second Enclosure in the west of the Main Enclosure. However, the route did not go to the Main Enclosure directly, and it went south of it to the Third Enclosure in the east. Some historians speculate the Back route should have been the actual Main Route because it is more defensive. The Yamazato Route led to the Yamazato-maru Enclosure, lower and north of the Third Enclosure. Hideyoshi’s residence with a tea-ceremony house was built in the former. All the enclosures were surrounded by high stone walls, which made the castle strong and showed Hideyoshi’s authority.

The Main Tower and the Main Enclosure in the miniature model
The three main routes written by myself on the location map at the site
Hideyoshi’s residence in the front of the model

Long battle and Breakdown after Hideyoshi’s death

The invasion of Korea started in 1592. That was originally for the conquest of China, but eventually caused a battle with Korea, because of the country was on the way to China. The Japanese Army at first occupied most of Korea instantly. Hideyoshi stayed and instructed the army from Hizen-Nagoya Castle. He was very pleased to hear the good news and even planned how he would divide China and Korea. However, the battle line was stuck in the southern part of Korea due to the reinforcements sent by the Ming Dynasty of China and the countermeasures taken by the Korean volunteer soldiers and navy. In 1593, envoys from the Ming Emperor came to this castle for the cease-fire negotiations.

“Painting of defense of Busanjin Fortress” depicting Japanese Siege of Busanjin in 1592  (licensed under Public Domain via Wikimedia Commons)
The miniature model of a Japanese warship called Atakebune, exhibited by the Saga Prefectural Nagoya Castle Museum
The miniature model of a breech-loading swivel gun, one of the weapons of the Ming Military, exhibited by the Saga Prefectural Nagoya Castle Museum

The negotiations continued for a long time, however, they failed. The war resumed in the southern part of Korea in in 1597. The unmotivated Japanese Army had to fight the useless war with the Ming Military. Many innocent Korean people were also killed. The Japanese Army finally withdrew from Korea immediately after Hideyoshi’s death in 1598. The failure of the war sped up the destruction of the Toyotomi Clan and the foundation of the Tokugawa Shogunate. Hizen-Nagoya Castle was abandoned at the same time and returned to a quiet place.

“Ulsan Siege Folding Screen” depicting the battle of Ulsan Castle in 1597, owned by Fukuoka City Museum  (licensed under Public Domain via Wikimedia Commons)
“The folding screen of Hizen-Nagoya Castle” , owned by the Saga Prefectural Nagoya Castle Museum (licensed under Public Domain via Wikimedia Commons)

To be continued in “Hizen-Nagoya Castle Part2”

180.Okoh Castle Part1

The castle’s long history and the Chosogabe Clan

Location and History

Feature of Tosa Province

Okoh Castle was located what is now Nankoku City, Kochi Prefecture. The prefecture is one of the four prefectures in Shikoku Island, but separated by Shikoku Mountains from the other three northern prefectures. When the prefecture was called Tosa Province in the past, it was not easy to visit there. That’s why the province was sometimes used for one of the places for exile or escape. However, it has been easy to live for local people with a warm climate and abundant food.

The location of the castle

The relief map of Shikoku Island and the range of Tosa Province

Chosogabe Clan settled in Tosa and built Castle

Okoh Castle had been owned by the Chosogabe Clan during all its life. The clan has a very long history and it was said that their founder was a branch of the Hata Clan that came from Korea to Japan in the Ancient Times with advanced technologies such as civil engineering and silk industry. The Hata Clan spread them and moved from central Japan (now Kinki Region) to many local areas of Japan including what is now Nagano Prefecture where the founder of the Chosogabe Clan lived. The founder called Yoshitoshi Hata fought at Kyoto in the 12th Century, but was defeated, so he escaped from his enemies to Tosa Province. He finally settled near the provincial capital in the fertile Kacho Plain and changed his family name to Chosogabe by combining local land names. Okoh Castle was thought to be built on a mountain beside the plain at the same time.

The whole view of Okoh Castle Ruins (licensed by Saigen Jiro via Wikimedia Commons)

One of Chosogabe’s strengths was to have connections to central Japan such as serving the Hosokawa Clan, a senior vassal of the Ashikaga Shogunate and inviting the Ichijo Clan, a high class noble to Tosa Province as the provincial governor. As a result, the Chosogabe Clan became one of the seven ruling clans in Tosa in the first 16th Century. However, the others of the seven ruling clans including the Motoyama Clan were against the Chosogabe Clan, then they attacked and burned Okoh Castle in 1508. The trace of the fire was found in the ruins of the castle. The Chosogabe Clan was once defeated.

The Second Tier, one of the enclosures which include the trace of the fire

Motochika Chosogabe ruled Shikoku based in this Castle

The next lord of the clan, Kunichika Chosogabe came back to Okoh Castle in 1518 with the support from the Ichijo Clan. He got his power by organizing a soldier group called Ichiryo-Gusoku who were usually farmers, but also soldiers with a Set of Armour in emergency. After that, he took revenge on his enemies by taking them as relatives or battles with the Ichiryo-Gusoku group. Kunichika’s son, Motochika Chosogabe was succeeded in governing the whole Tosa Province in 1575. Okoh Castle had been the home base of the clan. It was a typical mountain castle with many tiers covering the mountain. However, it had some unique features coming from the Chosogabe Clan. It was thought that some turrets were built on stone foundations, using roof tiles made by craftsmen from Izumi Province (now part of Osaka Prefecture). Stones were piled inside the earthen walls of the Third Tier. Such structures were still rare at that time in the whole cuntory and were done by Motochika’s connection to central Japan.

The figure of a Ichiryo-Gusoku soldier, exhibited in Kochi Castle
The portrait of Motochika Chosogabe, owned by Hada Shrine (licensed under Public Domain via Wikimedia Commons)
The stone walls of the Third Tier

Abandoned after Unification of Japan by Hideyoshi Toyotomi

Motochika finally achieved the unification of Shikoku Island in 1585. However, the ruler, Hideyoshi Toyotomi was processing his unification of Japan at the same time. Hedeyoshi sent over 100,000 of modernized troops to Shikoku Island in the same year while Motochika had about 40,000 soldiers including farmers. Motochika had no other option but to surrender and was allowed to govern just Tosa Provence by Hideyoshi. He also moved his home base from Okoh Castle to Otaka-sakayama Castle (now Kochi Castle) in 1588 and finally Urado Castle beside Urado Bay in 1591. it was said that this transfer was instructed by Hideyoshi to prepare his Invasion of Korea in 1592. Okoh Castle was abandoned then.

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

To be continued in “Okoh Castle Part2”