Suketsuna managed his territory by having his son Kazumitsu travel to Kyoto when Suketsuna stayed behind, and when Suketsuna traveled to Kyoto to serve in the Imperial Court, Kazumitsu would stay in the territory.
自らの在国中は子の量光を上洛させ、量光の在国中は自らが上洛し、宮中に奉仕する形を採り、所領の経営を行った。