He served for Yoshishige SATAKE (the 18th family head) and Yoshinobu SATAKE (Ukyo no daibu (Master of the Western Capital Offices)) and was flourished in diplomacy as well as his father.
佐竹義重(十八代当主)と佐竹義宣(右京大夫)の父子に仕え、父同様に外交面で活躍した。