Later, her father Toshimitsu SAITO followed his overlord Mitsuhide in the strike against Nobunaga ODA in the Honnoji Incident, but they were defeated by Hideyoshi TOYOTOMI in the Battle of Yamazaki, and Toshimitsu retreated back to his castle; later he was caught at Katata in Omi province, near Sakamoto-jo Castle, and was executed.
その後父・斎藤利三は主君の光秀に従い、ともに本能寺の変で織田信長を討つが、豊臣秀吉に山崎の合戦で敗戦し帰城後に坂本城下の近江国堅田で捕らえられて処刑された。