
Mori Terumoto, born in 1553 in Yoshida, Aki Province (now Hiroshima Prefecture), belonged to the influential Mori Clan during the late Sengoku and early Edo periods. His grandfather, Mori Motonari, and father, Mori Takamoto, were notable figures within the clan.
In 1582, Terumoto participated in the Siege of Takamatsu against Toyotomi Hideyoshi and later fought in the Battle of Shizugatake. Following these events, he pledged allegiance to Toyotomi Hideyoshi, who granted him the land around Hiroshima as his fief. Terumoto played a significant role in the establishment of Hiroshima, overseeing the construction of his castle in the region.
Appointed by Hideyoshi, Terumoto became one of the five members of the Council of Regents tasked with governing in place of Hideyoshi's young son, Hideyori, after the Taiko's death. Despite his distinguished lineage, Terumoto was considered less skilled both as a warrior and a governor compared to his warlord grandfather and strategist father.
During the Battle of Sekigahara, although officially designated as the leader of the Western forces by Ishida Mitsunari, Terumoto found himself relegated to Osaka Castle with Toyotomi Hideyori. Following the battle, he surrendered to Tokugawa Ieyasu.
Had Terumoto taken the field during the decisive battle and brought Hideyori with him, it is speculated that the course of events might have been different. Potential outcomes include the prevention of betrayals within the Western forces, the return of some Eastern supporters to their original loyalties, and the possibility of Ieyasu facing defeat. Terumoto passed away on April 27, 1625, at the age of 72.
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.
