Hōjō Ujinao

Who They Were

Hōjō Ujinao (北条氏直, ほうじょう うじなお) was a Japanese daimyō of the Sengoku period, born in 1562 at Odawara Castle. He was the son of Hōjō Ujimasa and Ōbai-in, and a member of the Later Hōjō clan. Ujinao served as the final head of that clan, holding the position of daimyo until the clan’s destruction in 1590.

His life spanned the end of the Muromachi period (1336–1573) and the early years of the Azuchi–Momoyama era. He was born in the fifth year of the Eiroku era (永禄, えいろく), a nengō that ran from 1558 to 1570. Ujinao died on December 19, 1591, in Ōsaka, at the age of twenty-nine.

Life and Career

Ujinao grew up at Odawara Castle, the stronghold of the Later Hōjō clan in the Kantō region. His father, Hōjō Ujimasa, had built the clan into a major power, controlling territory that stretched across much of eastern Japan. Ujinao was groomed for leadership from an early age, and his marriage to Toku-hime, a daughter of Tokugawa Ieyasu, tied the Hōjō to one of the most influential families of the period.

The decisive moment of Ujinao’s career came in 1590, when Toyotomi Hideyoshi, the newly ascendant hegemon of Japan, launched a campaign to subdue the Kantō. Hideyoshi demanded that the Hōjō submit to his authority, but the clan refused. This led to the Siege of Odawara, a large-scale military operation in which Hideyoshi’s forces surrounded the Hōjō stronghold. The siege ended with the Hōjō’s surrender, and Ujinao lost his entire domain.

Ujinao also participated in the Battle of Kannagawa, an earlier conflict that foreshadowed the clan’s eventual downfall. That battle, fought against forces loyal to Hideyoshi, was part of the broader struggle that culminated in the siege. After the surrender, Ujinao was spared execution, a fate that many defeated daimyō faced. Instead, he was allowed to survive, though stripped of his ancestral lands.

Following the Siege of Odawara, Ujinao was transferred to a small domain, where he continued as a minor daimyō into the early Edo period. His survival was unusual; most heads of defeated clans were killed or forced into suicide. Ujinao’s life ended just over a year later, in 1591, when he died in Ōsaka.

Why They Matter

Ujinao matters because his defeat marked the end of the Later Hōjō clan, one of the most powerful military houses of the Sengoku period. The clan had dominated the Kantō for nearly a century, and its fall removed the last major obstacle to Toyotomi Hideyoshi’s unification of Japan. The Siege of Odawara in 1590 was a turning point in Japanese history, and Ujinao was the figure at its centre.

His marriage to Toku-hime also had lasting political significance. That connection to Tokugawa Ieyasu likely saved his life after the siege, and it illustrates the complex web of alliances that shaped the period. Ujinao’s survival, even as a reduced daimyō, allowed the Hōjō name to persist into the Edo period, though the clan’s power was gone.

For students of Japanese history, Ujinao represents the fate of the Sengoku daimyō: men who rose through military skill and alliance-building, only to be crushed when a stronger hegemon emerged. His story is a concrete example of how the unification of Japan under Hideyoshi and then Ieyasu dismantled the old order.

The Name in Japanese

The name is 北条氏直, read in kana as ほうじょう うじなお, and in romaji as Hōjō Ujinao.

• 北 (ほう, hō) — “north.” This character is also read as kita in other contexts, but here it forms part of the clan name.
• 条 (じょう, jō) — “article” or “clause,” but in this compound it functions as part of the place-name-derived surname. Together, 北条 (Hōjō) originally referred to a location, and the clan took its name from that place.
• 氏 (うじ, uji) — “clan” or “family name.” This character is common in given names of samurai, and it carries the sense of lineage or house.
• 直 (なお, nao) — “straight” or “direct.” As a given-name element, it conveys uprightness or honesty, a common virtue in samurai naming conventions.

The surname 北条 is pronounced Hōjō, with a long vowel on the first syllable. The given name 氏直 is Ujinao, with the reading of 氏 as uji and 直 as nao. Note that 氏 here is not read as shi, its on’yomi reading, but as uji, a kun’yomi reading tied to the meaning of clan.

Legacy

Ujinao’s legacy is tied almost entirely to the fall of the Later Hōjō clan. He was the last of a line that had ruled the Kantō from Odawara, and his surrender in 1590 closed a chapter in Japanese military history. The clan’s territory was redistributed by Hideyoshi, and the Kantō was eventually given to Tokugawa Ieyasu, who made Edo his capital — a decision that shaped the next 250 years of Japanese history.

His daughter, 北条万姫 (Hōjō Manhime), survived him, and through her the Hōjō lineage continued, though in diminished form. Ujinao himself died in 1591, less than two years after the siege, and his early death meant he left no lasting political mark beyond the clan’s destruction.

In the broader narrative of the Sengoku period, Ujinao is often overshadowed by his father Ujimasa and by the towering figures of Hideyoshi and Ieyasu. But his role as the final Hōjō head makes him a necessary figure for understanding how the old daimyō order gave way to the Tokugawa shogunate. His name survives in the historical record as a symbol of the costs of resistance in an age of unification.