While the Imagawa clan was losing their grip, the Tokugawa clan attained independence in Mikawa Province and the Takeda clan in Kai Province began to invade Totoumi Province and Suruga Province, respectively.
今川氏の支配力が衰え、三河国で独立した徳川氏が遠江国へ、甲斐国の武田氏が駿河国へ侵攻を始める。