During the Hogen War in 1156, he took the side of Yoshimoto and during the Heiji War in 1159, he followed MINAMOTO no Yoshihira, the eldest son of Yoshitomo, and performed well.
保元元年（1156年）の保元の乱では義朝に属し、平治元年（1159年）の平治の乱では義朝の長男・源義平に従い活躍。