His sons were Kanetaka YAMAKI (Yamaki no Hogandai (an administrative official of the Retired-Emperor's Office)) who was first attacked by the rebellion army of MINAMOTO no Yoritomo, TAIRA no Kanehira, TAIRA no Nobuhira and TAIRA no Kanetoki.
子に源頼朝挙兵で最初の標的とされた山木兼隆（山木判官代）のほか、平兼衡、平信衡、平兼時がある。