The Sekigahara Campaign was a series of battles in Japan fought between the Eastern Army aligned with Tokugawa Ieyasu and the Western Army loyal to Ishida Mitsunari, culminating in the decisive Battle of Sekigahara. The conflict was sparked by a punitive expedition led by Ieyasu against the Uesugi clan in the northeastern Tōhoku region, providing Mitsunari with an opportunity to denounce Ieyasu in the name of the infant ruling taikō Toyotomi Hideyori while the Tokugawa troops were in the field.

Sekigahara Campaign
Part of the Sengoku period
Date
  • 22 August - 5 November 1600
Low-level conflict from 12 July
Continued Date-Uesugi conflict in Tōhoku until May 1601
Location
Japan
Result Tokugawa victory; beginning of Tokugawa shogunate
Territorial
changes
Tokugawa gains nominal control of all Japan
Belligerents

Eastern Army: Forces loyal to Tokugawa Ieyasu

Western Army: Forces loyal to Ishida Mitsunari

Commanders and leaders
Tokugawa Ieyasu
Tokugawa Hidetada
Tōdō Takatora
Matsudaira Tadayoshi
Fukushima Masanori
Katō Kiyomasa
Honda Tadakatsu
Torii Mototada 
Matsudaira Ietada 
Ōkubo Tadachika
Honda Masanobu
Ii Naomasa (WIA)
Katō Yoshiaki
Sakakibara Yasumasa
Sakai Ietsugu[1]
Maeda Toshinaga
Mogami Yoshiaki
Date Masamune
Kuroda Nagamasa
Kuroda Yoshitaka
Ikeda Terumasa
Hosokawa Tadaoki
Hosokawa Fujitaka Surrendered
Mizuno Katsunari
Nabeshima Naoshige
Kyōgoku Takatsugu
Sanada Nobuyuki
Horio Yoshiharu
Asano Nagamasa
Yamauchi Kazutoyo
Kobayakawa Hideaki (late)]
Nanbu Toshinao
Tsutsui Sadatsugu
Kanamori Nagachika
Ishida Mitsunari Executed
Ukita Hideie
Shima Sakon 
Ōtani Yoshitsugu 
Toyotomi Hideyori
Mōri Terumoto
Mōri Hidemoto
Konishi Yukinaga Executed
Uesugi Kagekatsu
Naoe Kanetsugu
Maeda Toshimasu
Ōtomo Yoshimune
Tachibana Muneshige
Shimazu Yoshihiro
Shimazu Toyohisa 
Chōsokabe Morichika
Oda Hidenobu Surrendered
Sanada Masayuki
Sanada Yukimura
Kobayakawa Hideaki (defected)
Strength
Over 75,000 initially[2] 120,000 initially[2]
Casualties and losses
4,000–10,000[3] killed 8,000[4]–32,000[5] killed
~23,000 defected

Much of the campaign consisted of a struggle to control key castles on the Tōkaidō and the Nakasendō, the main roads linking Edo and the capital of Kyoto. However, battles and sieges far from these key highways, both in the Tōhoku and in pockets of resistance around the capital, had wide-reaching effects on the manoeuvring and availability of troops for the decisive battle at Sekigahara. The campaign also spilled over briefly into the southern island of Kyūshū, but Ieyasu quickly ordered his forces to stand down following his victory for political reasons.

The campaign dramatically changed the political landscape of Japan, resulting in the ascendancy of the Tokugawa Shogunate over the Toyotomi clan and the shifting of political power between the various daimyō who participated in it.

Background

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With the death of Toyotomi Hideyoshi in 1598, his 5 year-old son Toyotomi Hideyori succeeded him formally as the taikō or imperial regent, and rule of Japan fell under a Council of Five Elders appointed by Hideyoshi as regents for Hideyori until he came of age.

Tokugawa Ieyasu, a member of the council, installed himself in Hideyoshi's former residence of Fushimi Castle and arranged political marriages for his children in defiance of the council's restriction on doing so, drawing political ire. Ishida Mitsunari, one of the Five Commissioners appointed to civil administration by Hideyoshi, attempted to approach Maeda Toshiie, a councilman and guardian of Hideyori, at Ōsaka Castle to conspire against Ieyasu; however, the intervention of Hosokawa Tadaoki, a friend of Ieyasu and of the Maeda clan, convinced Toshiie's son Toshinaga to dissuade Toshiie from opposing Ieyasu.[6]

Mitsunari resorted to attempting an assassination plot on Ieyasu, but when the plot failed, several of Ieyasu's generals independently attempted to eliminate Mitsunari. Mitsunari infamously escaped the castle at night disguised as a woman and fled to Fushimi Castle to beg Ieyasu to protect him from retaliation. Ieyasu agreed on the condition that Mitsunari go into exile in his holding at Sawayama Castle in the spring of 1599. Soon after, Maeda Toshiie died in April, and Toshinaga was elected to replace him; however, Ieyasu himself took up guardianship of Hideyori, occupying Ōsaka Castle on 28 October and further enraging the commissioners and council.[7]

Mobilisation

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Uesugi Kagekatsu, another councilman, defied Ieyasu by militarising, ordering 80,000 men to construct a castle in Aizu and expand its fortifications and road networks. On 7 May 1600, Ieyasu dispatched a letter to Kagekatsu demanding an explanation, Kagekatsu's chief advisor, Naoe Kanetsugu responded with mocking refusal. Subsequent negotiations broke down, with Kagekatsu even attempting to have one of Ieyasu's envoys killed as a spy, and after Kagekatsu refused to present in person at Ōsaka to account for his actions, Ieyasu summoned a war council on 12 July to plan a punitive expedition.[8]

On 24 July, Ieyasu departed from Ōsaka Castle for his punitive campaign, stopping at Fushimi Castle the next night to give his retainer Torii Mototada instructions against a likely Ishida-backed assault before continuing towards Aizu. Ieyasu was wary of a sudden attack by Mitsunari and his allies, and so he marched at a slow pace to monitor his rivals' movements, arriving in Edo on 10 August where he began mustering troops. Date Masamune and his uncle Mogami Yoshiaki, rulers of Sendai and Yamagata respectively on the border with the Uesugi clan's territory, returned swiftly to their home provinces to defend against Kagekatsu. Mitsunari immediately began summoning conspirators to Sawayama Castle following Ieyasu's departure, some even being convinced to abandon their journeys to join Ieyasu's campaign such as Ōtani Yoshitsugu. On 17 August Mitsunari's war council resolved to form the Western Army as a coalition against Ieyasu, with councilman Mōri Terumoto as its nominal commander-in-chief.[9] According to the letters from Mitsunari to Kagekatsu, it was recorded that Mitsunari also sought cooperation with him to plan a joint attack against Ieyasu army. However, due to lack of coordination, and alleged mistrust from Kagekatsu, in the end he did not move his troops to pursue the Ieyasu's army which were on their way returning to Kyoto as Mitsunari intended.[10]

On 22 August 1600, the coalition entered Ōsaka Castle and proclaimed the creation of the Western Army, claiming guardianship of Hideyori. The same day, Mitsunari issued a series of 13 charges against Ieyasu on behalf of the Five Commissioners and three members of the Council of Five Regents.[a] This proclamation effectively marked the declaration of war between the Western and Eastern armies.[11]

Chūbu-Kansai theatre

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Engagements around Kyoto

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The first major assault of the Western Army in the region of the capital was the siege of Fushimi Castle commencing 27 August. Torii Mototada was resolved to defend the garrison to the last, and despite setbacks the defense held until 6 September when Mototada committed seppuku with his remaining forces, majorly setting back Mitsunari's attempts to support his castles along the Nakasendō road. Nine days later, Mitsunari entered Ōgaki Castle uncontested.[12]

Though the Western Army had attempted to win over the loyalty of Hosokawa Fujitaka, the father of the Eastern Army general Hosokawa Tadaoki, Mitsunari had alienated Fujitaka during the period following Ieyasu's departure from Ōsaka through an abortive hostage-taking ploy resulting in the death of Tadaoki's wife. Fujitaka had instead fortified Tanabe in Tango Province with 500 men in support of Ieyasu. In mid-August, even prior to the official denouncement of Ieyasu, 15,000 Ishida troops under Onoki Shigekatsu had begun a siege of the fortress. However, Fujitaka's influence and prestige as a scholar-poet was so great that the sympathetic Ishida troops gave a weak offense, such as "forgetting" to load cannons before firing on the keep. The siege only ended 19 October following an order by the emperor to surrender to preserve his life and his precious library, following which the Western Army facilitated his retirement to Kyoto.[13]

Ōtsu Castle on the southwest shore of Lake Biwa, garrisoned by Kyōgoku Takatsugu came under siege on 13 October by the 15,000-strong Western forces of Mōri Motoyasu, Tachibana Muneshige and Tsukushi Hirokado, along with a naval blockade by Mashita Nagamori. The staunch resistance of the Eastern Army troops under Takatsugu was only ended on the 21 October after the Western Army bombarded the castle from Mount Nagara, by which point the Western besiegers, like Onoki Shigekatsu's troops at Tanabe, were too late to join the decisive battle at Sekigahara.[14][15]

Tōkaidō campaign

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On 29 August, Ieyasu had established a base of operations in Oyama, and by 1 September Ieyasu began relocating 50,000 troops mustered in Edo north to Oyama, preparing to strike at Kagekatsu in Aizu but not expecting to do so, believing the Date, Mogami and Maeda forces sufficient to halt the Uesugi advance. With the news of the fall of Fushimi, Ieyasu quickly returned to Edo by 10 September, already planning a westward return. Eager to secure the crossroads near Gifu Castle now threatened by the Western Army at Ōgaki Castle, Ieyasu sent Fukushima Masanori, Kuroda Nagamasa, Honda Tadakatsu, Ii Naomasa and Hosokawa Tadaoki ahead along the Tōkaidō road with 16,000 men, followed by 15,000 men under Ikeda Terumasa, Asano Yoshinaga and Yamanouchi Kazutoyo, to fortify Masanori's holding of Kiyosu and to seize Gifu Castle from Oda Hidenobu. The combined 31,000 troops of this "Tōkaidō Corps" quickly besieged Gifu on 28 September and forced the capitulation of Hidenobu.[16]

At first, Mitsunari want to use Gifu Castle and Ōgaki Castle as choke points to impede the Eastern army advances.[17] However, several developments of war forced him to abort the plan as:

This forced Mitsunari to prepare for the open engagement on the field of Sekigahara.[17]

Meanwhile in Ōsaka, Mōri clan retainer Kikkawa Hiroie was enraged by Mitsunari confining Mōri Terumoto, nominal commander-in-chief of the Western Army, to the castle, and in response to the insult Hiroie secretly communicated with the Tōkaidō Corps promising to keep the 36,000 Mōri troops from engaging the Eastern Army. Mōri Hidemoto, Terumoto's cousin and deputy, also urged Terumoto to defect to the Eastern Army before any engagement occurred.[26]

On 29 September, the Tōkaidō Corps occupied the highlands of Akasaka to threaten Ōgaki Castle as Nabeshima Naoshige besieged the Eastern Army stronghold of Matsuoka Castle. The following day, 30,000 Western troops under Mori Hidemoto, Chōsokabe Morichika, and Nabeshima Katsushige besieged An'nōzu Castle, held by Fukuda Nobutaka and his 1,700-strong garrison.[27][28] Ishida Mitsunari left Ōgaki Castle on 1 October for Sawayama Castle, where he relented and summoned Mōri Terumoto, who had returned to his own domain to raise troops, to return; one messenger was intercepted, and though a second messenger succeeded in prompting Terumoto to depart with his 30,000 troops, they were delayed from reaching the major confrontations.[29]

Ieyasu moved quickly towards the capital region, reaching Shimada in Suruga Province on 12 October and Nakaizumi in Totomi Province the following day. At the same time, Mōri Hidemoto and Kikkawa Hiroie entered Mino Province and fortified Mount Nangu. During this march, Ieyasu received a letter from Western Army commander Kobayakawa Hideaki offering to defect to the Eastern Army. On 17 October Ieyasu reached Kiyosu Castle, intending to bypass Ōgaki entirely to threaten Sawayama Castle or Ōsaka, and 2 days later he had arrived at Gifu Castle.[29]

Ieyasu arrived in Akasaka around noon on 20 October, meeting up with the main body of the Tōkaidō Corps, and encamped on the hill at Okayama. Western Army generals convinced Mitsunari to permit a testing raid, and Shima Sakon and Akashi Masataka led a small force to attack the Eastern Army at the Kuisegawa river near Ōgaki, mauling the Eastern Army and forcing them to retreat to Sekigahara to regroup. That night, Shimazu Yoshihiro with Ukita Hideie's support suggested a night assault on the exhausted Eastern Army troops, but was opposed by Shima Sakon who convinced Mitsunari to decline the proposal, insulting Yoshihiro. Mitsunari instead ordered a general withdrawal in the evening to the valley of Sekigahara after learning of Kobayakawa Hideaki's occupation of Mount Matsuo, emptying Ōgaki Castle of most of its garrison. [30]

On 21 October, the Western Army arrayed itself in the valley with Mitsunari's headquarters at the foot of Mount Sasao facing the Eastern Army, while Mōri Hidemoto led a separate formation at the Eastern Army's left flank at the foot of Mount Nangu. While both sides became aware of each others' positions at dawn, a thick fog halted plans initially and battle was not commenced until 8am when the fog cleared. The subsequent battle of Sekigahara saw a decisive defeat for the Western Army, with Mitsunari's contingent annihilated by Kobayakawa Hideaki defecting to the Eastern Army and rolling down the formation's right flank, while after a smaller engagement and the treachery of Kikkawa Hiroie forced the eastern formation under Mōri Hidemoto to withdraw rather than join battle.[31]

From 21 to 30 October, Ōgaki Castle was subsequently besieged and taken by the Eastern Army, while on 22 October Kobayakawa Hideaki began besieging Sawayama, ostensibly as a sign of penance and loyalty to Ieyasu; Ishida Masazumi, Mitsunari's brother and commander at Sawayama, capitulated and committed suicide on the second day of the siege. Ishida Mitsunari and Ankokuji Ekei were captured fleeing north from Sekigahara, and were subsequently executed in Kyoto on 9 November.[32]

Nakasendō campaign

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On 25 August, Ōtani Yoshitsugu had made contact with the Sanada clan at Ueda Castle and recruited Sanada Masayuki and his son Yukimura; the eldest son, Sanada Nobuyuki, had already been sent by Masayuki to join the Tokugawa, with whom he already had marriage ties through his wife Komatsuhime[c] in an attempt to preserve the Sanada clan. After dispatching the Tōkaidō Corps, Ieyasu sent his son Tokugawa Hidetada along the Nakasendō road with 36,000 men towards Mino, ordering him to threaten Ueda Castle while continuing on to meet the Tōkaidō Corps. He reached Karuizawa on 7 October and subsequently arrived in Komoro on 12 October; however, there he disobeyed his father's orders and instead marched on Ueda, encaping at Sometani.[33] Komatsuhime herself had a brief but bloodless confrontation at Numata Castle with Masayuki and Yukimura before the siege of Ueda began in earnest.[34]

Hidetada, being unexperienced in warfare at 21 years old, besieged Ueda Castle and its commander Sanada Masayuki unsuccessfully until 16 October, at which point he realised his delay and broke the siege to continue westward along the Nakasendō. He would still, however, only rendezvous with his disappointed father's forces late in the day on 21 October, after the Battle of Sekigahara had been fought and decided.[35]

Tōhoku theatre

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Uesugi Kagekatsu's uprising began in earnest even before the Western Army's proclamation, but Date Masamune and Mogami Yoshiaki began responding to hostilities even before the declaration of war. The Satake clan of Kubota Domain declared neutrality in the conflict due to a secret treaty with the Uesugi and the divided sympathies of clan head Satake Yoshinobu. Maeda Toshinaga also declared for the Tokugawa, but was initially blocked from supporting the campaign due to an internal conflict with the pro-Western faction within the Maeda clan led by his brother Toshimasa in Noto Province. Toshinaga eventually laid siege to Daishōji Castle on 7 September, prompting the suicide of the garrison commander and Toshimasa's capitulation.[36]

Keichō Dewa Campaign

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The northern campaign in and around Dewa province, known as the Keichō Dewa Campaign, was the key flashpoint providing the casus belli for the Sekigahara Campaign at large, and largely consisted of actions by the Uesugi clan against the combined forces of Mogami Yoshiaki and Date Masamune in an unsuccessful attempt to draw Ieyasu's troops northward from Edo.

In the course of responding to the Uesugi clan's mobilisation prior to the declaration of war, Date Masamune seized Shiroishi Castle south of Sendai from the Western Army-aligned Uesugi army in a short siege from the 18–19 August. Masamune's 20,000 troops under Katakura Kagetsuna, Oniniwa Tsunamoto and Yashiro Kageyori attacked Matsukawa, defended by 6,000 defenders under Honjo Shigenaga and Suda Nagayoshi, on October 6, but were repelled.[37][38][39]

Uesugi Kagekatsu nominated Naoe Kanetsugu to lead the campaign against the Date and Mogami. The three-division invasion of Mogami territory was launched on 14 October with the aims of taking Yamagata Castle, the 10,000-strong headquarters of Mogami Yoshiaki. Kanetsugu advanced from Yonezawa on 14 October with 20,000 troops of the first division westward towards Yamagata Castle; en route, the Uesugi army besieged Hataya Castle on 18 October, where the garrison of 300 led by Eguchi Gohei fell defending it to the last man.[14] Simultaneously, the 4,000-strong second division under Honmura Chikamori and Yokota Munetoshi besieged Kaminoyama Castle south of Yamagata, held by the Mogami retainer Satomi Minbu; the Uesugi forces conquered it but suffered setbacks thanks to a Mogami counterattack, losing Chikamori in battle and delaying the second division's approach towards Yamagata. The third division, comprising 3,000 men under Shida Yoshihide and Shimo Yoshitada, also advanced towards Yonegawa from the north via Shōnai.[40]

Kanetsugu arrived at Hasedō Castle on 21 October, the day of the Battle of Sekigahara, commencing the Siege of Hasedō. During the course of the siege, Date Masamune and Rusu Masakage crossed the mountain passes to encamp 2.5 km east of Yamagata on 24 October,[41] and Rusu Masakage led an attempt to relieve the siege,[42] prompting Kanetsugu to attempt to storm Hasedō; the assault was repelled, and Kanetsugu retreated leaving a holding force to threaten Hasedō. On November 5, news finally reached Kanetsugu of the defeat at Sekigahara and orders were given to lift the siege entirely, withdrawing the skeleton force to Yonezawa.[43] Date Masamune capitalised on this withdrawal by attempting to besiege Fukushima Castle on 12 November,[41] but withdrew when Uesugi Kagekatsu led a force to relieve the defenders.[44] The Uesugi conflict with the Date and Mogami would outlast the Sekigahara Campaign proper, with a subsequent abortive attempt by Date Masamune to take Fukushima Castle defeated in battle at Matsukawa on 28 May 1601.[45]

Kyūshū theatre

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In the run-up to hostilities, Nabeshima Naoshige of Saga Domain intended to support the Tokugawa; however, his son Katsushige was present at Mitsunari's war council on 17 August and swayed him towards joining the Western Army.[9] However, while the Nabeshima forces participated in some operations on Honshu including the assaults on Fushimi and Annotsu, Naoshige eventually recalled Katsushige to Kyūshū prior to the decisive battle at Sekigahara and switched allegiance to the Eastern Army. Tachibana clan head Tachibana Muneshige also joined the Western Army forces under the Mōri clan, leaving the defense of their hegemon Ōtomo clan's territory to his wife and co-clan head Ginchiyo. However, following the defeat at Sekigahara which Muneshige could not attend due to the protracted siege of Ōtsu, Muneshige also returned to defend his Kyūshū holdings.

Katō Kiyomasa quickly began a campaign in Kyūshū to besiege the holdings of Konishi Yukinaga, a Mōri vassal and rival of Kiyomasa's who had fought under the Western Army at Sekigahara and fled into hiding following the battle. Kuroda Yoshitaka also separately marched on Ōtomo Yoshitsugu's territory, taking Ishitatewara Castle easily on 19 October.[46] Kiyomasa besieged Udo Castle before meeting up with Kuroda Yoshitaka, who had already conquered several minor locations on Kyūshū, and Nabeshima Katsushige, whose family had defected to the Tokugawa. The two then began the siege of Yanagawa in Chikugo Province, defended by Tachibana Muneshige and Tachibana Ginchiyo.[47] The Tachibana troops continued to hold out in the castle, with Ginchiyo organising an ad-hoc militia of nuns to slow the advance of the Eastern Army, donning armour herself to serve as Muneshige's rearguard.[28][48] Muneshige eventually surrendered the castle following the suggestion that he defect to the Eastern Army in order to attack the Shimazu clan, their long-time rivals;[49] however, Ieyasu instituted a plan of appeasement for the Shimazu to prevent unrest following their defeat at Sekigahara, and so forbade any further action against them.[50][47]

Appendix

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Footnotes

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  1. ^ Maeda Toshinaga chose to abstain as he had already sided with Ieyasu.
  2. ^ The memorandum of Ōshige Heiroku about the Sekigahara campaign theorized that the castle had still not fallen at that moment, but that Yoshihiro saw the smoke rising from Ōgaki Castle and believed the castle already fallen.[25]
  3. ^ Komatsuhime was Tokugawa retainer Honda Tadakatsu's daughter.

References

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  1. ^ "朝日日本歴史人物事典".
  2. ^ a b Davis 1999, p. 204.
  3. ^ 『関原合戦記』
  4. ^ 『関原始末記』
  5. ^ 『関原軍記大成』
  6. ^ Bryant 1995, pp. 8–10.
  7. ^ Bryant 1995, pp. 10–12.
  8. ^ Bryant 1995, pp. 12, 36, 89.
  9. ^ a b Bryant 1995, pp. 36–38, 89.
  10. ^ Watanabe Daimon (2023). "関ヶ原の合戦、石田三成と直江兼続による「東西挟撃作戦」は史実なのか?". rekishikaido (in Japanese). PHP Online. pp. 1–2. Retrieved 11 June 2024.
  11. ^ Bryant 1995, pp. 12, 90.
  12. ^ Bryant 1995, pp. 38–39, 90.
  13. ^ Bryant 1995, pp. 42–43.
  14. ^ a b Turnbull 2000, p. 251.
  15. ^ Bryant 1995, pp. 44–47, 82, 90.
  16. ^ Bryant 1995, pp. 38–41, 90.
  17. ^ a b Tetsuo Owada (2013). 図解関ヶ原合戦までの90日: 勝敗はすでに決まっていた! [Illustrated 90 Days to the Battle of Sekigahara: The Victory or Defeat Has Already Been Determined!] (in Japanese). PHP研究所. p. 53. ISBN 978-4569815541. Retrieved 30 May 2024.
  18. ^ 尾西市史 通史編 · Volume 1 [Onishi City History Complete history · Volume 1] (in Japanese). 尾西市役所. 1998. p. 242. Retrieved 16 May 2024.
  19. ^ 参謀本部 (1911), "石川貞清三成ノ陣ニ赴ク", 日本戦史. 関原役 [Japanese military history], 元真社
  20. ^ Mitsutoshi Takayanagi (1964). 新訂寛政重修諸家譜 6 (in Japanese). 八木書店. ISBN 978-4-7971-0210-9. Retrieved 16 May 2024.
  21. ^ Fujii Jizaemon (1979). 関ヶ原合戦史料集 [Sekigahara Team History Collection] (in Japanese). 藤井治左衛門. p. 421. Retrieved 23 May 2024.
  22. ^ Tadachika Kuwata (1977). 戦国時代の謎と怪異 (in Japanese). 日本文芸社. p. 191. Retrieved 23 May 2024.
  23. ^ Takashi Suzuki (2006). 大垣藩戶田家の見聞書 二百年間集積史料「御家耳袋」 (in Japanese). 愛文書林. p. 32. ISBN 4872940520. Retrieved 23 May 2024.
  24. ^ 岐阜県 (1965). 岐阜県史 Volume 6 (in Japanese). 巌南堂書店. Retrieved 21 May 2024.
  25. ^ 大重平六覚書 [Memorandum of Ōshige Heiroku] (in Japanese). Retrieved 21 May 2024.
  26. ^ Bryant 1995, p. 38.
  27. ^ Bryant 1995, p. 90.
  28. ^ a b Turnbull, Stephen (2012-01-20). Samurai Women 1184–1877. Bloomsbury Publishing. ISBN 9781846039522.
  29. ^ a b Bryant 1995, pp. 47–48, 90.
  30. ^ Bryant 1995, pp. 48–50.
  31. ^ Bryant 1995, pp. 51–78.
  32. ^ Bryant 1995, pp. 79–80.
  33. ^ Bryant 1995, pp. 43–44, 90.
  34. ^ 小松姫の墓(芳泉寺) | 上田市文化財マップ
  35. ^ Bryant 1995, pp. 43–44, 78, 90.
  36. ^ Bryant 1995, pp. 36–37, 89–90.
  37. ^ 『伊達町史』第1巻 通史編上
  38. ^ 渡辺三省『本庄氏と色部氏』
  39. ^ 『日本戦史「関原役」』第7篇第5章 福島「會津攻伐ニ関スル者」
  40. ^ Stephen Turnbull (2012). Tokugawa Ieyasu. Osprey Publishing Ltd. p. 47. ISBN 9781849085748.
  41. ^ a b Turnbull 2000, p. 251-252.
  42. ^ "Rusu Masakage". kotobank. Retrieved 24 October 2021.
  43. ^ "日本の城がわかる事典「長谷堂城」の解説". kotobank. Retrieved 24 October 2021.
  44. ^ "Fukushima Castle".
  45. ^ "Battle of Matsukawa".
  46. ^ Bryant 1995, p. 82.
  47. ^ a b Turnbull 2000, p. 254.
  48. ^ "高橋・立花家の女性". ww2.tiki.ne.jp.
  49. ^ 立花宗茂. 人物叢書. 2001. ISBN 4642052208.
  50. ^ Kerr, George H. (2000). Okinawa: the History of an Island People, p. 158., p. 158, at Google Books

Bibliography

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Further reading

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Paul Davis used the following sources to compile the chapter "Sekigahara, 21 October 1600" in 100 Decisive Battles: From Ancient Times to the Present

  • De Lange, William. Samurai Battles: The Long Road to Unification Groningen: Toyo Press, 2020
  • Sadler, A.L. The Maker of Modern Japan: The Life of Tokugawa Ieyasu London: George Allen & Unwin, 1937
  • Sansom, George. A History of Japan from 1334–1615 Stanford University Press, 1961
  • Turnbull, Stephen. The Samurai: A Military History New York: Macmillan, 1977