His grandson was SATO Hyoe no jo (a lieutenant of the Middle Palace Guards) Yoshikiyo who was Hokumen no bushi and served the Cloistered Emperor Toba as Jugoinoge, that is, Saigyo later.
その孫が、やはり鳥羽院に使えた北面の武士・従五位下佐藤兵衛尉義清、後の西行である。