1287(Kōan10th) The territory Takaoka-mura, Enya-no-sato, Izumo Province, ingot was succeeded among his father Yasukiyo's inheritances.
Sasaki clan are descended directly from Emperor Uda (868-897) by his grandson Minamoto no Masazane (920-993) (Uda Genji), Takaoka Muneyasu (1255–1326), grandson of Sasaki Yoshikiyo, is the first who took the name of Takaoka from his domain in Takaoka-mura, Enya-no-sato, Kamdo-gun, Izumo province.