MINAMOTO no Yoritomo's father, MINAMOTO no Yoshitomo, was defeated in a battle with TAIRA no Kiyomori in the Heiji War (in 1159) and killed in Owari Province while he was running away to Kanto region.
頼朝の父・源義朝は、平治の乱（平治元年/1159年）で平清盛との戦いに敗れ、関東へ落ち延びる途中、尾張国で殺害された。