源義経
was a Japanese samurai of the late-Heian period. He was a follower of Minamoto no Yoshitsune. According to the "Genpei Jōsuiki", he was one of the , along with Kamata Morimasa, Kamata Mitsumasa, and Satō Tsugunobu. He was the younger brother of Tsugunobu, and their father was the Ōshū Fujiwara retainer Satō Motoharu.