But when Tadanaga SURUGA was dismissed from the position and later killed himself, Tsunayoshi TATEBAYASHI became the fifth shogun, and Tsunatoyo KOFU, who was later renamed to Ienobu, became the sixth shogun and returned to the Tokugawa head family, these Tokugawa families died out and the Owari, Kishu and Mito families came to be commonly called Gosanke.
しかし、駿河忠長が改易（後の自害）、館林綱吉が5代将軍となり、甲府綱豊が6代将軍（家宣と改名）として徳川宗家に戻り、これらの徳川家が消滅したため、尾張・紀州・水戸の三家を御三家と呼ぶことが定着した。