"Tairaclan" . "Siege of Hiuchi"@en . "Minamotoclan" . . . . "Hiuchiyama (\u706B\u6253\u3061\u5C71) was one of Minamoto no Yoshinaka's fortresses in Echizen Province, Japan. In April and May 1183, a Taira force led by Taira no Koremori attacked the fortress. It was built on rocky crags, and well defended; the Minamoto had even built a dam to create a moat. However, a traitor within the fortress tied a message to an arrow, firing it into the Taira camp, and revealing a way to breach the dam and drain the water."@en . . "Siege succeeds; fortress falls, butMinamotosurvive and escape" .