A popular belief states that the earthquake that took place right after the concubine Yotsutsuji came to the Yonezawa-jo Castle is a retribution for Kagekatsu having welcomed a concubine into the castle disregarding the presence of Princess Kiku (who was Kagekatsu UESUGI's lawful wife), and that she died too young because she was cursed by the vengeful spirit of Princess Kiku.
四辻氏の米沢城入り直後に地震が起きたことを、景勝が正室の菊姫(上杉景勝正室)を差し置いて側室である女を城内に入れたことへの天罰としたり、彼女があまりにも早く死んだ原因を菊姫の怨霊の祟りとする俗説もあるという。