A popular legend about a member of this clan states that he survived an assassination attempt, fled to Mongolia, and became Genghis Khan, which was popularized during the interwar period to justify invading China. For 10 points each:
[10m] Name this samurai clan that included the assassinated Yoshitsune, who defeated the monk Benkei on a bridge. This clan allied with the Hojo to defeat the Taira.
ANSWER: Minamoto
[10e] Before joining with his half-brother to fight the Taira, Yoshitsune was sheltered by the Fujiwara family, who held preeminent political power during this period. This period ended after the Minamoto victory in the Genpei War.
ANSWER: Heian period
[10h] A legend that Yoshitsune fled north to HokkaidÅ was used to justify the annexation of this democratic republic, established by former Tokugawa military officers.
ANSWER: Republic of Ezo
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