Imagawa Yoshimoto

Imagawa Yoshimoto (今川 義元, 1519 – June 12, 1560) was a pre-eminent daimyō (feudal lord) in the Sengoku period Japan. Based in Suruga Province,[1] he was one of the three daimyōs that dominated the Tōkaidō region.

Imagawa Yoshimoto
Imagawa Yoshimoto
Japanese crest Imagawa Akadori.svg
9th head of Suruga-Imagawa family
In office
Preceded byImagawa Ujiteru
Succeeded byImagawa Ujizane
Personal details
Sunpu, Suruga Province, Japan
DiedJune 12, 1560 (aged 41)
Okehazama, Owari Province, Japan
Japanese name
Kanji今川 義元
Hiraganaいまがわ よしもと
Katakanaイマガワ ヨシモト

He died in 1560 while marching to Kyoto to become Shōgun. He was killed in the village of Dengakuhazama in Okehazama by Oda Nobunaga.

Early life and successionEdit

Yoshimoto was born in 1519, the third son of Imagawa Ujichika[2] of the Imagawa clan-which claimed descent from Emperor Seiwa (850–880). His childhood name was Yosakimaru (芳菊丸). His family branched from Minamoto clan by the Ashikaga clan. As he was not the eldest son, he was not an heir to his father's lordship. As a result, the young boy was sent to a temple where his name was changed to Baigaku Shōhō (梅岳承芳) or Sengaku Shōhō (栴岳承芳). In 1536, his older brother Ujiteru died suddenly, unleashing successional disputes. His elder half-brother, Genkō Etan (玄広恵探), tried to seize the lordship, but the clan split into two factions. Yoshimoto's faction argued he was the rightful heir because Yoshimoto's mother (Jukei-ni) was the consort of Ujichika. Genkō Etan's faction disputed this based on Genkō's seniority, and that his mother was a member of the Kushima family. However, the Genkō faction was eliminated in the Hanagura Disturbance (花倉の乱, Hanagura-no-ran).[3] Baigaku Shōhō changed his name to Yoshimoto at this point and succeeded the clan.[3]


After Yoshimoto succeeded to family headship, he married the sister of Takeda Shingen of Kai. This allowed Yoshimoto to cement an alliance with the Takeda when he helped Shingen imprison his father, Takeda Nobutora, in 1540.[4] Soon after, Yoshimoto fought against the Hōjō of Sagami. In 1542, Yoshimoto began his advance into Mikawa Province, in an effort to fight the growing influence of Oda Nobuhide in that region, but was defeated in the Battle of Azukizaka (1542). In campaigns over the course of the ensuing decades, Yoshimoto wrested control over the Suruga, Totomi, and Mikawa provinces.[5]

In 1552, Shingen's son, Takeda Yoshinobu, married Yoshimoto's daughter. Yoshimoto and the Hōjō clan reached a peace agreement in 1554 with the marriage of Yoshimoto's son Ujizane to the daughter of Hōjō Ujitsuna. In 1558, Yoshimoto left the clan's political affairs in Ujizane's hands, in order to focus on dealing with the advance westward into Mikawa.

Battle of Okehazama and deathEdit

Imagawa Yoshimoto's grave at Okehazama

In the summer of 1560, after forming a three-way alliance with the Takeda and the Hōjō, Yoshimoto headed out to the capital with Tokugawa Ieyasu (then known as Matsudaira Motoyasu) of Mikawa in the vanguard.[6] Despite having a strong force of 25,000,[6] Yoshimoto deliberately announced that he had 40,000 troops. While this statement put fear in many factions, Oda Nobunaga of Owari Province saw through it. (Some historical sources support the claim of 40,000.[7])

With many victories, Yoshimoto's army was letting its guard down, celebrating with song and sake. A surprise attack by the Oda army of 3,000[8] following a downpour left Yoshimoto's army in complete disorder.[9] Two Oda samurai (Mōri Shinsuke and Hattori Koheita) ambushed the Imagawa army and killed Yoshimoto, in the village of Dengakuhazama.[4]:37–39[10]

Imagawa Ujizane succeeded to family headship after Yoshimoto's death,[11] but the Imagawa clan fell from power. Ujizane was later summoned by Tokugawa Ieyasu and became a kōke in the administration of the Tokugawa clan. Yoshimoto's niece was Lady Tsukiyama, the wife of Tokugawa Ieyasu.

Yoshimoto has several graves; his body itself is buried at Daisei-ji, a temple in the city of Toyokawa in modern Aichi Prefecture.


Preceded by
Imagawa Ujiteru
9th Suruga-Imagawa family head
Succeeded by
Imagawa Ujizane

Appearances in popular fictionEdit

He is a playable character in Pokémon Conquest (Pokémon + Nobunaga's Ambition in Japan), with his partner Pokémon being Pineco and Forretress.[12]

In the Samurai Warriors series, Yoshimoto is represented as a foolish old-fashioned nobleman. His weapon is a kemari which is inspired by his son, Ujizane's historical obsession towards kemari.

A female version of Yoshimoto appears in anime The Ambition of Oda Nobuna. In this version, instead of dying Yoshimoto is spared and later installed as a figurehead Shōgun to legitimize Nobuna's claim to Kyoto.

See People of the Sengoku period in popular culture.

In Sengoku Basara game and anime series, he was shown to be a weak leader, using his vassals as decoys while trying to retreat. In anime version, he was killed by Oda Nobunaga.


  1. ^ Zusetsu: Nihon meijōshū. (Tokyo: Gakken, 2003), p. 55.
  2. ^ Naramoto Michael, Nihon no kassen: Monoshiri jiten. (Tokyo: Shufu-to-seikatsusha, 1992), p. 259.
  3. ^ a b (in Japanese) "Suruga Imagawa-shi" on (12 July 2008)
  4. ^ a b Turnbull, Stephen (1987). Battles of the Samurai. Arms and Armour Press. pp. 43–44. ISBN 0853688265.
  5. ^ Nihonshi yōgoshū B (Tokyo: Yamakawa shuppansha, 2000), p. 122.
  6. ^ a b Naramoto, p. 254.
  7. ^ Frank Brinkley, A History of the Japanese People. (New York: Encyclopædia Britannica, Inc., 1915.), p. 784.
  8. ^ Nihonshi yōgoshū B, p. 122.
  9. ^ Naramoto, pp. 258–59.
  10. ^ "1560: The Spring Thunderstorm,"[dead link]
  11. ^ Naramoto, p. 259.
  12. ^ "Yoshimoto + Pineco – Pokemon Conquest characters". Pokemon. Retrieved 2012-06-17.

External linksEdit