Despite being the hero who destroyed the Taira clan, Minamoto no Yoshitsune was hunted by his own brother Yoritomo. After accepting court appointments without Yoritomo's permission, Yoshitsune was branded a traitor. He fled to northern Hiraizumi but was attacked by Fujiwara no Yasuhira after the death of his protector Hidehira. On April 30, 1189, at age 31, Yoshitsune killed his own family and committed suicide at Koromogawa. His tragic life became the archetype of "hōgan-biiki" — sympathy for the underdog.