Horio Tadauji hailed from the lineage of Horio Yoshiharu, the inaugural lord of Matsue Castle. Following his father Yoshiharu's incapacitation in a tea ceremony altercation preceding the Battle of Sekigahara in 1600, Tadauji assumed his father's role in Tokugawa Ieyasu's Eastern forces. Post the battle, Ieyasu commended Tadauji for his commendable contributions and granted him 240,000 koku in Izumo Province (Shimane Prefecture).
Before committing to Ieyasu at Sekigahara, Yamanouchi Kazutoyo (Yamauchi Katsutomo) sought counsel from his confidant Horio Tadauji on the best course of action. Tadauji responded fervently and with great reverence, declaring, "I pledge my lands, my castle, my family, my food, my life, all I can give, without hesitation for the Tokugawa cause!" Touched by this, Yamanouchi decided to heed his friend's advice and joined the Eastern forces.
During the pre-battle assembly, Ieyasu received numerous declarations of loyalty, yet it was Yamanouchi's pledge that garnered the most attention. Faced with providing his own response, the less eloquent Yamanouchi simply echoed his friend Horio's impassioned declaration. "I pledge my lands, my castle, my family, my food, my life, all I can give, without hesitation for the Tokugawa cause!" Horio must have been astonished to hear his own words repeated by his less articulate comrade. Ieyasu, pleased with the sincerity and wholeheartedness, commended Yamanouchi for his resolute commitment, earning admiration from other leaders who cheered in approval.
While Horio Tadauji distinguished himself on the battlefield, his friend Yamanouchi played a lesser role, mostly observing from the sidelines. Tadauji succumbed to illness four years after the pivotal battle.
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.
