The Ashikaga clan approached Yasumori at the time and Kazusa no Saburo ASHIKAGA (believed to be Mitsuuji KIRA) from the Kira clan of the Ashikaga family, agreed with and assisted Yasumori during the Shimotsuki Incident.
足利氏はこの頃泰盛に接近し、霜月騒動では一族吉良氏の足利上総三郎（吉良満氏か）が泰盛に与同している。