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.


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