In 1600, Ieyasu, who had become one of the Gotairo (Council of Five Elders) in the Toyotomi government after Hideyoshi's death, led the troops as the head of warlords, insisting on the subjugation of Kagekatsu UESUGI, then was asked to be in charge of Fushimi-jo Castle.
慶長5年（1600年）には秀吉死後の豊臣政権において、五大老となっていた家康は会津の上杉景勝の征伐を主張し、諸将を率いて出兵すると、伏見城を預けられる。