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Kasugayama Castle
is a Sengoku period ''yamashiro''-style Japanese castle located in the Nakayashiki neighborhood of the city of Jōetsu, Niigata prefecture. It was the primary fortress of the warlord Uesugi Kenshin, and was originally built and ruled by the Nagao clan. It is listed as one of Japan's Top 100 Castles and the ruins have been protected as a National Historic Site since 1935. The castle and its history were mentioned by Takizawa Bakin, and Yamazaki Yoshishige in ''Tanki manroku''. Kasugayama Castle is regarded as among Japan's Five Greatest Mountain Castles, along with Nanao Castle, Odani Castle, Kannonji Castle and Gassantoda Castle. The castle is unofficially called . Background Kasugayama Castle extended over two ridges on the summit of 180-meter Mount Kasuga. The castle had no stone walls but consisted of many enclosures ('' kuruwa'') with earthen or clay ramparts and dry moats built on terraces at various levels on the mountain. The core of the castle (or inner bailey) wa ...
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Jōetsu, Niigata
is a Cities of Japan, city located in Niigata Prefecture, Japan. , the city had an estimated population of 189,430, in 76,461 households with a population density of 190 persons per km2. The total area of the city was . Jōetsu borders the Sea of Japan and is renowned for its abundance of snow, the annual cherry-blossom festival, ''sake'' and ''Koshihikari'' rice. Geography Jōetsu is in southwest Niigata Prefecture, bordered by the Sea of Japan to the north and Nagano Prefecture to the south. It is approximately 133 kilometers west of the city of Niigata, Niigata, Niigata, the prefectural capital and 139 kilometers east of Toyama, Toyama, Toyama. Mountains Surrounded by the Japanese Alps, Jōetsu contains four noteworthy mountains: *Hishigatake-yama - part of the Shin-etsu trail and one location of the annual "Candle Road" festival *Kanayasan - birthplace of skiing in Japan *Kasugayama - formerly the location of Kasugayama Castle, home of the Sengoku period ''daimyō'', U ...
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Gassantoda Castle
was a Sengoku period ''yamajiro''-style Japanese castle located in Izumo Province, in what is now part of the city of Yasugi, Shimane Prefecture in the San'in region of far western Japan. Its ruins have been protected by the central government as a National Historic Site since 1934. Gassantoda Castle was built using the whole of Gassan's ridges and valleys, and is regarded as one of the five largest and most important medieval mountain castles along with Kasugayama Castle ( Niigata), Nanao Castle ( Ishikawa), Odani Castle and Kannonji Castle (Shiga). History Gassan Toda Castle (月山富田城) is located on Gassan, which is 180 meters tall some 20 kilometers from the mouth of the Hirose River at eastern edge of current Shimane prefecture. The area was an important center from ancient times for the production of ''tatara'' steel, which was essential in the production of Japanese swords, and Gassan occupies a central location in the transportation routes of Izumo Province. Dur ...
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Toyotomi Hideyoshi
, otherwise known as and , was a Japanese samurai and ''daimyō'' (feudal lord) of the late Sengoku period, Sengoku and Azuchi-Momoyama periods and regarded as the second "Great Unifier" of Japan.Richard Holmes, The World Atlas of Warfare: Military Innovations that Changed the Course of History, Viking Press 1988. p. 68. Although he came from a peasant background, his immense power earned him the rank and title of and , the highest official position and title in the nobility class. He was the first person in history to become a ''Kampaku'' who was not born a noble. He then passed the position and title of ''Kampaku'' to his nephew, Toyotomi Hidetsugu. He remained in power as , the title of retired ''Kampaku'', until his death. It is believed, but not certain, that the reason he refused or could not obtain the title of , the leader of the warrior class, was because he was of peasant origin. Hideyoshi rose from a peasant background as a Affinity (medieval), retainer of the pr ...
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Later Hōjō Clan
The was one of the most powerful samurai families in Japan in the Sengoku period and held domains primarily in the Kantō region. Their last name was simply , but were called "Later Hōjō" to differentiate between the earlier Hōjō clan who had the same name and '' mon'', even though it was not their official family name. History The history of the family is written in the ''Hōjō Godaiki''. The clan is traditionally reckoned to be started by Ise Shinkurō, who came from a branch of the prestigious Ise clan, descendants of Taira no Toshitsugu, a family in the direct service of the Ashikaga shoguns, as close advisors and '' Shugo'' (Governor) of Yamashiro Province (Ise Sadamichi since 1493). During the Imagawa clan succession crisis in 1476, Shinkurō whose sister was married to Imagawa Yoshitada, Shugo (Governor) of Suruga Province, became associated with the Imagawa clan. At the death of Yoshitada in battle, Shinkurō went down to Suruga Province to support his nephew ...
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Oda Nobunaga
was a Japanese ''daimyō'' and one of the leading figures of the Sengoku period, Sengoku and Azuchi-Momoyama periods. He was the and regarded as the first "Great Unifier" of Japan. He is sometimes referred as the "Demon Daimyō" and "Demon King of the Sixth Heaven". Nobunaga was an influential figure in Japanese history and is regarded as one of the three great unifiers of Japan, along with his Affinity (medieval), retainers, Toyotomi Hideyoshi and Tokugawa Ieyasu. Nobunaga paved the way for the successful reigns of Hideyoshi and Ieyasu by consolidating power, as head of the very powerful Oda clan, through a series of wars against other ''daimyō'' beginning in the 1560s. The period when Nobunaga and Hideyoshi were in power is called the Azuchi–Momoyama period. The name "Azuchi–Momoyama" comes from the fact that Nobunaga's castle, Azuchi Castle, was located in Azuchi, Shiga; while Fushimi Castle, where Hideyoshi lived after his retirement, was located in Momoyama. Nob ...
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Battles Of Kawanakajima
The were a series of battles fought in the Sengoku period of Japan between Takeda Shingen of Kai Province and Uesugi Kenshin of Echigo Province from 1553 to 1564. Shingen and Kenshin contested each other for control of the plain of Kawanakajima between the Sai River and Chikuma River in northern Shinano Province, located in the present-day city of Nagano. The battles were triggered after Shingen conquered Shinano, expelling Ogasawara Nagatoki and Murakami Yoshikiyo, who subsequently turned to Kenshin for help. Five major battles of Kawanakajima occurred: Fuse in 1553, Saigawa in 1555, Uenohara in 1557, Hachimanbara in 1561, and Shiozaki in 1564. The most famous and severe battle was fought on 18 October 1561 in the heart of the Kawanakajima plain, thus being known the Battle of Kawanakajima. The battles were ultimately inconclusive and neither Shingen or Kenshin established their control over the plain of Kawanakajima. The Battles of Kawanakajima became one of "the m ...
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Takeda Shingen
was daimyō, daimyo of Kai Province during the Sengoku period of Japan. Known as "the Tiger of Kai", he was one of the most powerful daimyo of the late Sengoku period, and credited with exceptional military prestige. Shingen was based in a poor area with little arable land and no access to the sea, but he became one of Japan's leading daimyo. His skills are highly esteemed and on par with Mōri Motonari. Name Shingen was called "Tarō" (a commonly used pet name for the eldest son of a Japanese family) or Katsuchiyo (勝千代) during his childhood. After his ''genpuku'' (coming of age ceremony), he was given the formal name Harunobu (晴信), which included a character from the name of Ashikaga Yoshiharu, the 12th shogun of the Ashikaga shogunate. It was a common practice in feudal Japan for a higher-ranking samurai to bestow a character from his own name to his inferiors as a symbol of recognition. From the local lord's perspective, it was an honour to receive a character f ...
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Nagao Kagetora
, later known as , was a Japanese ''daimyō'' (magnate). He was born in Nagao clan, and after adoption into the Uesugi clan, ruled Echigo Province in the Sengoku period of Japan. He was one of the most powerful ''daimyō'' of the Sengoku period. Known as the "Dragon of Echigo", while chiefly remembered for his prowess on the battlefield as a military genius and war hero, Kenshin is also regarded as an extremely skillful administrator who fostered the growth of local industries and trade, as his rule saw a marked rise in the standard of living of Echigo. Kenshin is famed for his honourable conduct, his military expertise, a long-standing rivalry with Takeda Shingen, his numerous defensive campaigns to restore order in the Kantō region as the '' Kanto Kanrei'', and his belief in the Buddhist god of war Bishamonten. Many of his followers and others believed him to be the avatar of Bishamonten and called Kenshin the "God of War". Name His original name was Nagao Kagetora (長尾 ...
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Nagao Harukage
was Uesugi Kenshin's older brother, and successor to his father Nagao Tamekage in 1536. It would seem that Harukage hadn't proven the most effective or inspiring leader (probably due to ill health), and his failure to exert control and gain support of the powerful ''kokujin'' families had resulted in a situation which was nearly to the point of tearing the province apart. As the story is told, at first Kenshin was reluctant to take the field against his own brother, but was eventually convinced that it was necessary to the survival of Echigo. Kenshin succeeded in wresting control of the clan from Harukage in 1548. Harukage stepped down from the lead of the clan and provincial government, and gave the titles to his younger brother. Harukage died five years later in 1553. References Bibliography

* Daimyo 1509 births 1553 deaths {{Daimyo-stub ...
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Uesugi Kagetora
was the seventh son of Hōjō Ujiyasu; known as Hōjō Saburō, he was adopted by Uesugi Kenshin, and was meant to be Kenshin's heir. However, in 1578, he was attacked in his castle at Otate by Uesugi Kagekatsu—Kagetora's respective brother-in-law—and was subsequently defeated. Kagetora committed suicide the following year in Samegao Castle. Biography Uesugi Kagetora was born in either 1552 or 1554, and during his lifetime was also known as Hōjō Ujihide (北条氏秀), Hōjō Saburō (北条三郎), Saburō Kagetora (三郎景虎). He was the seventh son (sixth to survive to adulthood) of Hōjō Ujiyasu, younger brother of Hōjō Ujimasa, Hōjō Ujiteru, Hōjō Ujikuni, Hōjō Ujinori, Hōjō Ujitada, and older brother of Hōjō Ujimitsu. His mother was the sister-in-law of Toyama Yasumitsu, a vassal of the Hōjō clan (other sources say Suikeiin, Ujiyasu's principle wife). It's likely that he and Hōjō Ujihide were two different people and that Ujihide was the son ...
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Naoe Kagetsuna
(1509–1577) was an officer under the Uesugi clan in historic Japan.Kawanakajima 1553–64: Samurai power struggle
Turnball, S. 2013.
Kagetsuna served as a very close confidant to . In both domestic and external affairs, Kagetsuna left his mark on Kenshin's regime. Kagetsuna was entrusted with distribution and defense of the supplies and reinforcements to the battlefield, during the expedition to the . He fought alongside the

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Kakizaki Kageie
was a Japanese samurai of the Sengoku period, who served the Uesugi clan of Echigo Province. He was one of the most important and well known generals of Uesugi Kenshin. He earned a reputation for being an extremely ferocious warrior like Kato Kiyomasa and the like. He fought at the 3rd battle of the Battles of Kawanakajima against the Takeda clan, and led the vanguard force for the Uesugi at the 4th battle. Kenshin suspected Kageie of treason and ordered his death, by seppuku , also known as , is a form of Japanese ritualistic suicide by disembowelment. It was originally reserved for samurai in their code of honor, but was also practiced by other Japanese people during the Shōwa era (particularly officers near .... It was a smoldering revenge that he would harbor for the rest of his life. References Further reading *Murooka, Hiroshi (1969). ''Kakizaki Kageie''. Tokyo: Tokyo Nihon Jōkaku shiryōkan. Samurai 1575 deaths Uesugi retainers Year of birth uncerta ...
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