Toyotomi Hidenaga was an outstanding military commander and strategist of his time, who was unjustly overshadowed by his half-brother, the great Toyotomi Hideyoshi. At different stages of his life, he was known by the names Kinoshita Koichiro, Hashiba Nagahide, and Hashiba. Despite his relative obscurity among the general public, Hidenaga was considered one of the best minds of his time, on par with the renowned Kuroda Kanbei.

He not only developed strategic plans, but also personally led the vanguard of Hideyoshi's army in key campaigns. Holding important military and administrative posts, Hidenaga played a key role in the formation and consolidation of Toyotomi's power.
He was born in the village of Nakamura in the province of Owari. He and Hideyoshi had the same mother but different fathers. Unlike his colorful, expansive, and ambitious brother, Hidenaga was level-headed, judicious, and respected by many daimyo. He often acted as a mediator in conflicts, and even Tokugawa Ieyasu, the future shogun, valued his opinion and treated him with the same respect as Hideyoshi.
His brother included Hidenaga in his inner circle of confidants, giving him the freedom to express dissent and influence key decisions. Hidenaga was always at the forefront of battles, both during his service to Oda Nobunaga and during Hideyoshi's heyday.
In 1577, he participated in the conquest of Harima Province. A year later, he suppressed the rebellion of Bessho Nagaharu, captured Takeda Castle in Tajima, participated in the siege of Kuroi Castle and the famous siege of Miki Castle (1578–1580), where he cut off supply routes and forced the enemy to retreat. He captured Ayabe Castle in the province of Tamba, and after the surrender of the Bessho clan, he ended the campaign with a victory.
In the same year, 1580, he established control over Tajima by capturing Arikoyama Castle and became its commander. Hidenaga then played a key role in the siege of Tottori Castle.
In 1582, he participated in the “water siege” of Bitchu Takamatsu Castle. When the Honnoji Incident occurred in Kyoto and Oda Nobunaga was killed, Hideyoshi and his brother marched on the capital and defeated the traitor Akechi Mitsuhide at the Battle of Yamazaki.
Later, Hidenaga participated in the Battle of Shizugatake (1583), the battles of Komaki and Nagakute (1584), and the campaigns in Shikoku (1585) and Kyushu (1586–1587). However, by the end of the 1580s, he had fallen seriously ill and handed over command to his comrade Todo Takatora.
After the victory over the Hojo clan in 1590, which marked the unification of Japan under Hideyoshi's rule, Hidenaga died six months after the siege of Odawara Castle at the age of 50.
He was buried at Daikokuji Temple in Kyoto. Although his name is rarely mentioned alongside the great figures of the era, Hidenaga left an important mark on the history of the Sengoku Jidai as a strategist, diplomat, and indispensable ally of Toyotomi Hideyoshi.
See also
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Takeda Nobuyoshi

Takeda Nobuyoshi (1128–1186 or later) was a prominent Japanese samurai lord of the late Heian and early Kamakura periods and the founder of the Takeda clan.
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Tokugawa Iemochi

Tokugawa Iemochi (1846–1866) was the fourteenth shōgun of the Tokugawa shogunate and ruled from 1858 until his death. His reign came during the turbulent final years of the shogunate, when Japan faced growing Western pressure and serious internal political conflict.
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Tokugawa Ienari

Tokugawa Ienari (1773–1841) was the eleventh shōgun of the Tokugawa shogunate and ruled from 1787 to 1837, making him the longest-serving Tokugawa shōgun. He was a great-grandson of the eighth shōgun, Tokugawa Yoshimune.
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Matsudaira Nobuyasu

Matsudaira Nobuyasu was only twenty years old when his father ordered him to commit seppuku. The reason was not a defeat in battle, but a crisis inside the Tokugawa family that had become too dangerous to ignore.
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Yamagata Masakage

Masakage was one of Takeda Shingen’s most loyal and capable commanders. He was included in the famous list of the “Twenty-Four Generals of Takeda Shingen” and also belonged to the inner circle of four especially trusted warlords known as the Shitennō.
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Yagyu Munenori

Yagyū Munenori began his service under Tokugawa Ieyasu while his father, Yagyū Muneyoshi, was still at his side. In 1600, Munenori took part in the decisive Battle of Sekigahara. As early as 1601, he was appointed a kenjutsu instructor to Tokugawa Hidetada, Ieyasu’s son, who later became the second shogun of the Tokugawa clan.
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Yagyu Muneyoshi

A samurai from Yamato Province, he was born into a family that had been defeated in its struggle against the Tsutsui clan. Muneyoshi first took part in battle at the age of sixteen. Due to circumstances beyond his control, he was forced to enter the service of the Tsutsui house and later served Miyoshi Tōkei. He subsequently came under the command of Matsunaga Hisahide and in time became a vassal first of Oda and later of Toyotomi.
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Endo Naozune

Naozune served under Azai Nagamasa and was one of the clan’s leading vassals, renowned for his bravery and determination. He accompanied Nagamasa during his first meeting with Oda Nobunaga and at that time asked for permission to kill Nobunaga, fearing him as an extremely dangerous man; however, Nagamasa did not grant this request.
