| 词条 | Siege of Oshi |
| 释义 |
|conflict=Siege of Oshi |partof=Supremacy of Toyotomi Hideyoshi |image= Oshi-jo fukugen 001.jpg |image_size= 300px |caption= Oshi Castle |date=1590 |place=Musashi Province |coordinates={{coord|36|8|13.74|N|139|27|10.36|E|display=inline,title|region:JP-11_type:landmark}} |casus= |territory= |result=Toyotomi victory |combatant1=Hōjō forces |combatant2=Toyotomi forces |commander1=Narita Nagachika Kaihime |commander2=Ishida Mitsunari |strength1=3000 |strength2=23,000 |casualties1= |casualties2= }}{{Campaignbox Campaigns of Toyotomi Hideyoshi}}{{Campaignbox Campaigns of the Hōjō}} The 1590 {{nihongo|Siege of Oshi|忍城の戦い|Oshi-jō no tatakai}} was one of many battles in Toyotomi Hideyoshi's campaigns against the Hōjō clan during Japan's Sengoku period. BackgroundOshi Castle was a stronghold of the Narita clan in north-central Musashi Province. The Narita were originally vassals of the Ogigayatsu Uesugi clan and under the leadership of Narita Akiyasu completed Oshi Castle around 1479. The castle was built on a small elevation near the Tone River and used surrounding marshes and swamplands as part of its outer defenses. It was regarded as one of the seven most important strongholds of the Kantō region. The Narita clan changed their allegiance to the Odawara Hōjō clan following the defeat of the Uesugi clan at the Siege of Kawagoe Castle in 1546. Fourteen years later Uesugi Kenshin, the daimyō of the Uesugi clan, invaded the area in support of Uesugi Norimasa (the Shōguns deputy or Kanto kanrei). This forced Narita Nagayasu, the Castellan of Oshi Castle to sever his ties to the Odawara Hōjō. However, after a quarrel with Uesugi Kenshin, the enraged Narita switched back to the Odawara Hōjō clan. In reprisal, Uesugi Kenshin burned down the town around the castle in 1574. SiegeDuring the Siege of Odawara in 1590, the daimyō Toyotomi Hideyoshi dispatched one of his senior retainers, Ishida Mitsunari, on an expedition to reduce the outlying castles still loyal to the Odawara Hōjō clan throughout the Musashi Province. Three days after capturing Tatebayashi Castle, Ishida’s forces of 23,000 troops arrived at Oshi. On arrival they discovered that the Narita clan leader, Narita Ujinaga, was at Odawara with the bulk of his forces. He had left his home castle defended by only 619 samurai and 2000 local conscripts led by his daughter Kaihime and younger brother Narita Ujichika. After the castle refused to surrender, the castle held off numerous attacks from Ishida's forces. This included a copy-cat effort to flood the defenders using the same method that Hideyoshi used at his famous Siege of Takamatsu. Despite Ishida’s impressive construction of 28 kilometers of dikes and torrential rains, the castle still held for over a month. Eventually the defenders only surrendered after hearing word that their lord had been defeated at Odawara. LegacyOshi Castle gained fame from the siege as the “floating castle”. But it also ruined the career of Ishida, who emerged with a sullied image and the reputation of a poor commander. It subsequently affected his ability to gain the loyalty and support of Japan's other powerful daimyo after the death of Toyotomi Hideyoshi. This lack of support eventually contributed to his defeat at the 1600 Battle of Sekigahara. In popular culture
See also
References
Notes1. ^{{imdb title|1674778|The Floating Castle}} {{Japan-battle-stub}} 3 : Sieges involving Japan|1590 in Japan|Conflicts in 1590 |
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