Then Shugo took over the functions of Kokuga, grew into Shugo daimyo (Japanese territorial lord as provincial constable) and established the control system called the Shugo-ryogoku system (Shugo-controlling province system).
それから、国衙機能を取り込んでいき、守護大名へと成長して、守護領国制と呼ばれる支配体制を築いた。