However, Yasuhira, who was yield under persistent pressure of the Kamakura side, broke the will of his father and killed his own brother FUJIWARA no Yorihira, who supported Yoshitsune with affection.
しかし泰衡は再三の鎌倉の圧力に屈して父の遺言を破り、義経を慕っていた弟の藤原頼衡を殺害。