Ishida Mitsunari (石田 三成,Japanese pronunciation:[i.ɕi.da(|)mʲi.tsɯꜜ.na.ɾʲi],^[1][2] 1559 – November 6, 1600) was a Japanesesamurai and military commander of the lateSengoku period of Japan. He is probably best remembered as the commander of the Western army in theBattle of Sekigahara following theAzuchi–Momoyama period of the 16th century. He is also known by his court title,Jibu-no-shō(治部少輔).

Ishida Mitsunari
石田 三成
Ishida Mitsunari, depicted in a portrait.
Daimyō ofSawayama Castle
In office 1590–1600
Succeeded by	Ii Naomasa
Personal details
Born	Sakichi (佐吉) 1559 Ōmi Province (present-dayNagahama,Shiga Prefecture)
Died	November 6, 1600(1600-11-06) (aged 40–41) Kyoto
Resting place	Sangen-in,Daitoku-ji,Kyoto
Spouse	Kogetsu-in
Children	Ishida Shigeie Ishida Shigenari Ishida Sakichi Tatsuhime at least two other daughters
Parents	Ishida Masatsugu (father) Unknown (mother)
Relatives	Ishida Masazumi (brother)
Military service
Allegiance	Azai clan Toyotomi clan Western Army
Rank	Bugyō,Daimyō
Commands	Sawayama Castle
Battles/wars	Siege of Tottori Siege of Takamatsu Battle of Shizugatake Battle of Komaki and Nagakute Siege of Oshi Korean Campaign Siege of Fushimi Battle of Sekigahara

Mitsunari was born in 1559 at the north ofŌmi Province (which is nowNagahama city,Shiga Prefecture), and was the second son ofIshida Masatsugu, who was a retainer for theAzai clan. His childhood name wasSakichi (佐吉). The Ishida withdrew from service after the Azai's defeat in 1573 at theSiege of Odani Castle. According to legend, he was a monk in a Buddhist temple before he servedToyotomi Hideyoshi, but the accuracy of this legend is doubted since it only came about during theEdo period.^{[citation needed]}

In 1577, Mitsunari metToyotomi Hideyoshi, when the former was still young and the latter was thedaimyō of Nagahama. Later, Mitsunari became a Hideyoshi samurai officer. When Hideyoshi engaged in a campaign in theChūgoku region, Mitsunari assisted his lord in attacks against castles like theTottori Castle andTakamatsu Castle (in present-dayOkayama).^{[citation needed]}

In 1583, Mitsunari participated in theBattle of Shizugatake. According to the "Hitotsuyanagi Kaki", he was in charge of a mission to spy onShibata Katsuie's army and also performed a great feat of Ichiban-yari (being the first to thrust a spear at an enemy soldier) as one of the warriors on the front line. Later, he served in theBattle of Komaki and Nagakute in 1584. That same year, he worked as akenchi (survey magistrate) at Gamo county inOmi Province.^{[citation needed]}

In 1585, Mitsunari was appointed as administrator ofSakai, a role he took together with his elder brotherIshida Masazumi. He was appointed one of thefive bugyō, or top administrators of Hideyoshi's government, along withAsano Nagamasa,Maeda Gen'i,Mashita Nagamori andNatsuka Masaie. Hideyoshi made him adaimyō ofSawayama inŌmi Province, a five hundred thousandkoku fief (now a part ofHikone).Sawayama Castle was known as one of the best-fortified castles during that time. In January 1586, he hiredShima Sakon, who was renowned as a commander having wisdom and courage.^{[citation needed]}

In 1588, Mitsunari was placed in charge of the famed “sword hunt” conducted by Hideyoshi in an effort to disarm the non-military bulk of the population and preserve peace.^{[citation needed]}

In 1590, he campaigned against theHōjō clan, where he commanded theSiege of Oshi and capturedOshi Castle.^[3][4]

In 1592, Mitsunari participated in theJapanese invasions of Korea as one of the Three Bureaucrats withMashita Nagamori andAsano Nagamasa.^[3]

In 1597, Mitsunari was ordered by Hideyoshi to persecuteChristians. However, he showed sympathy to Christianity by minimising the number of Christians he arrested, and trying hard to appease Hideyoshi's anger (see26 Martyrs of Japan). In the same year, Mitsunari also reportedly worked to end the war with Korea and China.^[5]

Mitsunari had high status among the bureaucrats of Hideyoshi's government, and was known for his unbending character. He had many friends; two of the most notable being the famous samuraiŌtani Yoshitsugu andShima Sakon. However, Mitsunari was on bad terms with somedaimyō that were known as good warriors, includingKuroda Nagamasa andHachisuka Iemasa, as well as Hideyoshi's nephewKobayakawa Hideaki. In particular, Kobayakawa Hideaki developed a grudge against Mitsunari as a result of rumors spread byTokugawa Ieyasu that Mitsunari was behind his uncle's decision not to reward him withChikugo after Kobayakawa's reckless behaviour at theSiege of Ulsan. Toward the end of Taiko Hideyoshi's life, Hideyoshi ordered the execution of his heir and nephewToyotomi Hidetsugu and Hidetsugu's family, leaving his new heir to be the extremely young child,Toyotomi Hideyori.^{[citation needed]}

After Hideyoshi's death, the conflicts in the court worsened. The central point of the conflict was the question of whether Tokugawa Ieyasu could be relied on as a supporter of the Toyotomi government, whose nominal lord was still a child, with actual leadership falling toa council of regents. After the death of the respected "neutral"Maeda Toshiie in 1599, the conflict came to arms, with Mitsunari forming an alliance of Toyotomi loyalists to stand against Tokugawa Ieyasu. Mitsunari's support came largely from the three of Hideyoshi's regents:Ukita Hideie,Mōri Terumoto, andUesugi Kagekatsu, who came from the south and west of Japan, with the addition of theUesugi clan in the north. Tokugawa Ieyasu's support came from central and eastern Japan, but he still exercised influence and intimidation over some of the Western lords. The titular head of the Western alliance wasMōri Terumoto, but Mōri stayed entrenched inOsaka castle; the leadership fell to Mitsunari in the field.

In mid 1600, the campaign began. Mitsunari besiegedFushimi Castle before marching into direct conflict with Tokugawa's alliance atSekigahara. In October 21, at the Battle of Sekigahara, a number of lords stayed neutral, watching the battle from afar, not wishing to join in the losing side. Tokugawa's forces gained the edge in the battle with the betrayal of Kobayakawa Hideaki to their side, and won the battle.

After his defeat at Sekigahara, Mitsunari sought to escape but was caught by villagers. He was beheaded in Kyoto. Otherdaimyō of the Western army, likeKonishi Yukinaga andAnkokuji Ekei were also executed. After execution, his head, severed from his body, was placed on a stand for all the people in Kyoto to see. His remains were buried at Sangen-in, a sub-temple of theDaitoku-ji, Kyoto.^{[citation needed]}

A legend says that Ieyasu showed him mercy but hid him, for political reasons, with one of his veteran generals,Sakakibara Yasumasa, where he grew old and died of natural causes. To thank Yasumasa for his silence, Mitsunari gave him atantō nicknamedIshida Sadamune (石田貞宗) – aNational Treasure of Japan.^{[citation needed]}

Mitsunari had three sons (Shigeie,Shigenari, and Sakichi) and three daughters (only the younger girl's name is known,Tatsuhime) with his wife. After his father's death, Shigenari changed his family name to Sugiyama to keep living.^{[citation needed]}

Sawayama Castle was a castle which was controlled by the Ishida clan. When the castle captured by the Eastern army after the Sekigahara battle ended and after Mitsunari died, it was reported by a Tokugawa vassal named Itasaka Bokusai who entered the castle that there was not a single piece of gold or silver kept by Ishida Mitsunari there.^[6]

According toAsano clan Documents, there is popular belief that Mitsunari's reputation as military commander suffered badly due to the alleged bad performance during theSiege of Oshi, particularly his failed strategy to flood the castle to force the defender to submit.^[a] However, other records based on documented correspondence of the operation have stated that the water flooding attack was actually an instruction from Toyotomi Hideyoshi himself, which was relayed byAsano Nagamasa and Kimura Shigekore, while Mitsunari only executed the strategy and actually did not have freedom to devise his own initiatives.^[7]

Stephen Turnbull stated that traditional Japanese historiography did not pay much attention to Mitsunari's legacy, as he lost and Tokugawa won; he was often portrayed as a weak bureaucrat. His reputation has somewhat recovered since then, with later historians note his skill in planning and earlier battlefield victories, and that Sekigahara could easily have gone his way had a few more lords remained loyal.^[3]

According to popular theory, in 1598, after the death of Toyotomi Hideyoshi, the government of Japan had an accident when seven military generals consisting ofFukushima Masanori,Katō Kiyomasa,Ikeda Terumasa,Hosokawa Tadaoki,Asano Yoshinaga,Katō Yoshiaki, andKuroda Nagamasa planned a conspiracy to kill Ishida Mitsunari.^[8] However, despite the traditional depiction of the event as "seven generals against Mitsunari", modern historian Watanabe Daimon has pointed out that actually there were more generals involved in conflict against Mitsunari, such asHachisuka Iemasa,Tōdō Takatora, andKuroda Yoshitaka who also brought their troops and entourage to confront Mitsunari.^[9]

It was said that the reason behind this conspiracy was dissatisfaction of those generals towards Mitsunari as he wrote poor assessments and underreported their achievements during theJapanese invasions of Korea,^[8] while some like Tadaoki also accused Mitsunari of other mismanagement during his tenure under Hideyoshi.^[9] At first, these generals gathered at Kiyomasa's mansion inOsaka Castle, and from there they marched to Mitsunari's mansion. However, Mitsunari had learned of this from a report by a servant ofToyotomi Hideyori named Jiemon Kuwajima, and fled toSatake Yoshinobu's mansion together withShima Sakon and others to hide.^[8] When the seven generals found out that Mitsunari was not in his mansion, they searched the mansions of various feudal lords in Osaka Castle, and Kato's army also approached the Satake residence. Mitsunari and his party escaped from the Satake residence and barricaded themselves atFushimi Castle.^[10] The next day, the seven generals surrounded Fushimi Castle with their soldiers as they knew Mitsunari was hiding there.Tokugawa Ieyasu, who was in charge of political affairs in Fushimi Castle attempted to arbitrate the situation. The seven generals requested Ieyasu to hand over Mitsunari, which Ieyasu refused. Ieyasu then negotiated a promise to let Mitsunari retire and to review the assessment of the Battle of Ulsan Castle in Korea which had been a major source of this incident. He also had his second son,Yūki Hideyasu, to escort Mitsunari to Sawayama Castle.^[11]

However, historians like Daimon, Junji Mitsunari, and Goki Mizuno have pointed out from the primary and secondary sources text about the accident that this was more of legal conflict between those generals and Mitsunari, rather than conspiracy to assassinate him. The role of Ieyasu here was not to physically protect Mitsunari from physical harm, but to mediate the legal complaints from the military faction figures who had a problem with Mitsunari. Considering these facts, a more proper term to describe this incident is "the military generals' lawsuit against Mitsunari", rather than "Seven generals' conspiracy to kill Mitsunari".^[12][9]

Nevertheless, historians viewed this incident not just as simply personal problems between those generals and Mitsunari, but rather as an extension of the political rivalries of greater scope between the Tokugawa faction and the anti-Tokugawa faction led by Mitsunari. Since this incident, those military figures who were on bad terms with Mitsunari would later support Ieyasu during the conflict of Sekigahara between the Eastern army led by Tokugawa Ieyasu and the Western army led by Ishida Mitsunari.^[8][13] Muramatsu Shunkichi, writer of "The Surprising Colors and Desires of the Heroes of Japanese History and violent women”, gave his assessment that the reason of Mitsunari failed in his war against Ieyasu was due to his unpopularity among the major political figures of that time.^[14]

For long time, the prevailing opinion about the cause of the Sekigahara war between Mitsunari and Ieyasu was that it was caused by the enmity between them. However, this view was challenged byTonooka Shin'ichirō, a professor atNara University and director of theTsuruga City museum, as Shin'ichirō viewed the political maneuvers which led to the conflict in Sekigahara as being solely based on Mitsunari's motivation to regain his political position after the coup of military factions which stripped him of his position and had nothing to do with Ieyasu at personal level.^[15]

On May 19, 1907, a group of Japanese researchers planned an excavation of Mitsunari's grave with the cooperation of a local newspaper. This was meant to aid Sesuke Watanabe fromTokyo Imperial University, who was writing a biography on Mitsunari. The one who led and examined the remains of Mitsunari was archaeologist Buntarō Adachi. Adachi restored Mitsunari's damaged skull, made a plaster cast, and recorded measurements of his upper arm bone and other bones. In 1943, a student of Adachi, Kenji Seino took further investigation, relying on photographs of Mitsunari's remains to conduct interviews with Adachi. When Seino completed his investigation, he discovered that Mitsunari's head was long from front to back and he had crooked teeth, and it was estimated that Mitsunari's age at the time of his death was about 41. Furthermore, Seino had reported his finding that based on the skeleton, it was difficult to distinguish the skeleton's gender. Seino also reported that the height of Mitsunari was estimated to be 156 centimeters. After the investigation, a plaster statue and other specimens of Mitsunari were preserved at Kyoto Imperial University, and his remains were reburied.^[16]

Thekatana nicknamed Ishida Masamune, made by the master swordsmithMasamune, was formerly owned by Ishida Mitsunari. It is anImportant Cultural Property according to theAgency for Cultural Affairs, and is held in theTokyo National Museum.

TheTantō "Hyūga Masamune", also made byMasamune, was also in the possession of Ishida Mitsunari. He gave this sword to Fukuhara Nagatake [the husband of his younger sister]; the sword was taken by Eastern army general namedMizuno Katsushige after the Western army defeatedbattle of Sekigahara.^[17] It is aNational Treasure of Japan, and is currently held in theMitsui Memorial Museum.^[18]

• In James Clavell's novelShōgun, the character of "Ishido" is based on the historical figure Ishida. In the 1980 TV mini-series adaptation, Ishido was portrayed byNobuo Kaneko. The character is played byTakehiro Hira in the 2024 adaptation,Shōgun.^[19]
• Mitsunari appears in the 1989 filmRikyu byHiroshi Teshigahara.
• In the 2017 filmSekigahara, Mitsunari is the main character and is portrayed quite sympathetically. This version of Mitsunari is dismayed at Hideyoshi's execution of his heir and regent, recruits allies interested in ruling with justice, is uncomfortable with taking families hostage as leverage, genuinely seeks the best for Hideyoshi's heir, and is in general a forthright and honest type. His rival Tokugawa is portrayed as more of a schemer. The director, Masato Harada, saw Mitsunari as a more modern type of ruler, ahead of his time.
• Mitsunari is a character in theSengoku Basara franchise where he is portrayed more as a warrior loyal to Hideyoshi as opposed to an administrator and a general. He excels in usingIaido and darkness-based attacks there. In one anime he hates Ieyasu Tokugawa but in the other Ieyasu hated him, while in movie he hated Masamune Date more than Ieyasu. Mitsunari is voiced byTomokazu Seki in all Japanese media.Troy Baker voiced him in English with the exception ofEnd of Judgement, where he is replaced byMatthew Mercer.
• In theSamurai Warriors video game series, Mitsunari is portrayed as a strategist of the Toyotomi forces against the Hōjō clan, using a fan in battle.
• Mitsunari is a playable character inPokémon Conquest (Pokémon + Nobunaga's Ambition in Japan), with his partnerPokémon beingPawniard andBisharp.
• InNioh, a game based on the events of the late Sengoku period, Ishida is featured as a strategist under the Toyotomi clan. After losing the Battle of Sekigahara, Mitsunari is betrayed by the antagonistEdward Kelley, an English alchemist, and transformed into ayokai (demon) by him. The protagonistWilliam Adams must then fight the transformed Mitsunari in a boss battle.
• Mitsunari is also a suitor in the Japanese romance game Ikemen Sengoku where he is viewed as an innocent angel who adores Ieyasu. However, his adoration is often rebuked.
• The mangaLone Wolf and Cub has the eponymous Lone Wolf tell Daigoro that Mitsunari, after being sentenced to death, was given a persimmon but refused to eat it on the grounds that persimmons made him sick. He was supposedly mocked for caring about indigestion when he was about to be executed, but Lone Wolf tells Daigoro that Mitsunari did the right thing by preserving his health until the last moment so he could fight for his lord.

• Bryant, Anthony.Sekigahara 1600: The Final Struggle for Power. Praeger Publishers, 2005
• SengokuDaimyo.com The website of Samurai Author and HistorianAnthony J. Bryant
• SamuraiArchives.comArchived 2007-04-02 at theWayback Machine