Council of Five Elders

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The council of five regents, also known as the five Tairō (五大老 go-tairō), was formed by Toyotomi Hideyoshi to rule Japan in the place of his son, Hideyori, until such time as he came of age. Hideyoshi chose his five most powerful daimyo: Ukita Hideie, Maeda Toshiie, Uesugi Kagekatsu, Mori Terumoto, and the famous Tokugawa Ieyasu. (Kobayakawa Takakage was also to have been a regent, but died before Hideyoshi himself.)

It was Hideyoshi's hope that the members of the council would balance each other, preventing any one of them from taking control. This was not to be, however: almost immediately after Hideyoshi's death in 1598, the regents swiftly divided themselves into two camps, consisting of 'Tokugawa' and 'everybody else'. War did not actually break out until mid-1600; it ended the same year, at the Battle of Sekigahara, ending in an uneasy peace that left Hideyori alive and in control of Osaka Castle.