After the defeat and death of Yoshinaka, he took the side of MINAMOTO no Yoritomo and played an important role as the head of Tada-Genji, an important part of MINAMOTO no Yoshitsune's army in the Battle of Ichinotani in March, 1184.
義仲の敗亡後は源頼朝方につき、寿永3年（1184年）2月の一ノ谷の戦いでは源義経軍の一翼・多田源氏の棟梁として活躍する。