Sanada Nobuyuki was a renowned samurai of the Sengoku period and the eldest son of daimyō Sanada Masayuki. He was the elder brother of the famous warrior Sanada Yukimura. Nobuyuki’s mother was Kansho-in, Masayuki's wife, and he was married to Komatsuhime (Inahime), the daughter of Honda Tadakatsu and the adopted daughter of Tokugawa Ieyasu. Nobuyuki also had two other wives: Seiin-in, his cousin, and Ukyo, the daughter of Tamagawa Hidemasa.
In his youth, Nobuyuki’s father served under Takeda Shingen and later his son, Takeda Katsuyori. To prove the Sanada clan’s loyalty to the Takeda, Nobuyuki was sent as a hostage. After the fall of the Takeda clan to the combined forces of Oda Nobunaga and Tokugawa Ieyasu, Nobuyuki escaped to Ueda Castle, the Sanada family stronghold.
In 1585, Tokugawa Ieyasu attacked Ueda Castle, but Nobuyuki, alongside his father Masayuki, successfully defended it in the Battle of Kami River. Later, as Masayuki aligned with Toyotomi Hideyoshi, Nobuyuki was sent to serve Tokugawa Ieyasu as a retainer to safeguard the Sanada clan’s future in case of conflict.
During the pivotal Battle of Sekigahara in 1600, Nobuyuki sided with the Tokugawa (Eastern Army), while his father and brother, Yukimura, fought for the Toyotomi (Western Army). After Ieyasu’s victory, Nobuyuki used his influence to save his father and brother from execution, though Masayuki and Yukimura were exiled to Kudoyama in Kii Province, and Nobuyuki was granted control of Ueda.
By 1614, tensions between the Tokugawa and Toyotomi clans flared again. During the Siege of Osaka, Yukimura escaped exile and joined Toyotomi forces to resist the Tokugawa. Despite his earlier efforts to protect his family, Nobuyuki was unable to save Yukimura, who died in battle.
Following the Siege of Osaka, Tokugawa Ieyasu held Nobuyuki in high regard. In 1622, he was made the first lord of the Matsushiro Domain, a position he held until his death at the age of 92.
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.
