Hōjō Ujimasa

Hōjō Ujimasa (北条 氏政, 1538 – August 10, 1590) was the fourth head of the later Hōjō clan, and daimyō of Odawara. Ujimasa succeeded the territory expansion policy from his father, Hojo Ujiyasu, and achieved the biggest territory in the clan's history.

Hōjō Ujimasa
北条 氏政
Ujimasa Hojo.jpg
Hōjō Ujimasa
Head of Later Hōjō clan
In office
Preceded byHōjō Ujiyasu
Succeeded byHōjō Ujinao
Personal details
Sagami Province, Japan
DiedAugust 10, 1590(1590-08-10) (aged 51–52)
Odawara Castle, Sagami Province, Japan
Children12, including Hōjō Ujinao
RelativesLady Hayakawa (sister)
Hōjō Ujiteru (brother)
Hōjō Ujikuni (brother)
Hōjō Ujinori (brother)
Uesugi Kagetora (brother)
Imagawa Yoshimoto (maternal uncle)
Imagawa Ujizane (cousin and brother-in-law)
Takeda Shingen (father-in-law)
Takeda Katsuyori (brother-in-law)
Military service
AllegianceMitsuuroko.svg Later Hōjō clan
CommandsOdawara Castle
Battles/warsSiege of Odawara (1561)
Battle of Konodai (1564)
Siege of Odawara (1569)
Siege of Sekiyado (1574)
Siege of Gion castle (1575)
Kazusa Campaign (1577)
Battle of Omosu (1580)
Siege of Odawara (1590)

Early life and riseEdit

In 1538, Ujimasa was born as the second son of Hojo Ujiyasu. His childhood name was Matsuchiyo-maru (松千代丸). As Ujiyasu's first son, Shinkuro, died young, Ujimasa became the heir of Ujiyasu.

In 1554, when Ujiyasu make an alliance with Takeda Shingen and Imagawa Yoshimoto. Ujimasa took a daughter of Shingen, Obai-in, for his lawful wife.[1]

Upon his father Hojo Ujiyasu's retirement, Ujimasa inherited formal leadership of the family around 1559.[2]

Hōjō CampaignEdit

In 1560, Hojo clan seized Iwatsuki Castle and almost conquered whole Musashi Province.[2] Ujimasa commanded in many battles, he took part in the Battle of Konodai (1564), including the Siege of Odawara (1569).

In 1574, Ujimasa forced Sekiyado Castle of Shimosa Province under Yanada Harusuke to surrender and also forces Yuki Harutomi a vassal of Uesugi clan swore allegiance to Ujimasa.

In 1575, he forced Gion Castle of Shimotsuke Province under Oyama Hidetsuna to surrender.

In 1577, Ujimasa invaded Kazusa Province and realized the reconciliation with his old enemy, Satomi Yoshihiro. This battle marked the first battle for his heir, Hojo Ujinao.

In 1580, after Takeda Katsuyori joined the force to support Uesugi Kagekatsu and Uesugi Kagetora killed himself, Ujimasa built a new alliance with Oda Nobunaga and Tokugawa Ieyasu. He invaded the territory of the Takeda clan in Suruga from both sides attacked Katsuyori, which triggered the Battle of Omosu.

In 1582, following the sudden death of Oda Nobunaga, Ujimasa took advantage of the situation and launched an attack on Oda clan territory at Battle of Kanagawa, who had received territories after the defeat of Takeda Katsuyori. Later, Hojo and Tokugawa clans settled a territorial dispute by giving the Tokugawa clan Kai and Shinano Provinces and the Hojo clan Kozuke Province.

Conflict with HideyoshiEdit

In 1588, Toyotomi Hideyoshi succeeded the unifying nation from Oda Nobunaga. Hideyoshi asked Ujimasa and Ujinao, the father and son, to attend the imperial visit to Jurakudai (Hideyoshi's residence and office in Kyoto), but Ujimasa refused it. However, Ujimasa proposed to reschedule the visit to spring or summer of 1590, but Hideyoshi refused the proposal, which worsened their relationship.


In 1590, after Ujimasa consolidated his clan's position and retired. His son Hōjō Ujinao became head of the clan and lord of Odawara. Later that year, Hideyoshi launch the Odawara Campaign against Hōjō clan.

3rd Siege of OdawaraEdit

In 1590, Odawara Castle was the biggest castle in Japan at that moment. However, Hideyoshi surrounded by the biggest army of Japan. Hojo's plan was use all of castles in Kanto, to against Hideyoshi by guerrilla attacking. However, Hideyoshi defeated all those castle one by one with all his samurai. Ujimasa failed to hold Odawara against the forces of Toyotomi Hideyoshi and finally Odawara was fallen. Later, Ujimasa was forced to commit suicide along with his brother Ujiteru.[2]

Like many samurai who committed seppuku in the face of shameful defeat, Ujimasa composed death poems:

Autumn wind of eve
Blow away the clouds that mass
O'er the moon's pure light.
And the mists that cloud our mind
Do thou sweep away as well.

(雨雲の おほへる月も 胸の霧も はらひにけりな 秋の夕風)

Now I'm about to disappear,
Wondering how I should feel it.
From the emptiness I came,
Hence I shall return there.

(我が身今 消ゆとやいかに 思ふべき より来たり 空へ帰れば)

Grave of Hōjō Ujimasa and Ujiteru


  • Father: Hōjō Ujiyasu
  • Mother: Zuikei-in (d. 1590), daughter of Imagawa Ujichika
  • Wives:
    • Ōbai-in (1543–1569), daughter of Takeda Shingen
    • Hōshō-in (d. 1590)
  • Children:
    • Hōjō Shinkurō (1555 – c. 1557) by Ōbai-in
    • Hōjō Ujinao by Ōbai-in
    • Ōta Gengorō (1563–1582) by Ōbai-in, son-in-law of Ōta Ujisuke
    • Ōta Ujifusa (1565–1592) by Ōbai-in, son-in-law of Ōta Ujisuke
    • Chiba Naoshige (d. 1627) by Ōbai-in, son-in-law of Chiba Kunitane
    • Hōjō Naosada by Ōbai-in
    • Hōjō Genzō
    • Hōjō Katsuchiyo (b. 1590) by Hōshō-in
    • daughter married Suzuki Shigeuji
    • daughter married Niwata Shigesada
    • daughter married Satomi Yoshiyori
    • daughter married Chiba Kunitane


In popular cultureEdit

Hōjō Ujimasa appears in Koei's video games Kessen, Samurai Warriors 2, Samurai Warriors 3 and Warriors Orochi. He was also in Capcom's Sengoku Basara, Sengoku Basara 2, and Sengoku Basara 2 Heroes as an old man who was armed with spear and has both his ancestral spirits and ice attacks and assisted by Fuma Kotaro. He also appears in The Creative Assembly's Total War: Shogun, and Total War: Shogun 2. Professional wrestler Akito wrestled as Ujimasa for the Dramatic Dream Team promotion on February 10, 2013.[3]

See alsoEdit


  1. ^ Turnbull, Stephen (1987). Battle of the Samurai. London: Arms and Armour Press. p. 68. ISBN 0853688265.
  2. ^ a b c "Hojo Ujimasa". kotobank. Retrieved 18 October 2021.
  3. ^ "Into The Fight シリーズ 2013 in Odawara". Dramatic Dream Team (in Japanese). Archived from the original on 2013-04-08. Retrieved 2013-02-10.