Firstly, they established the system for controlling "daimyo" (Japanese territorial lord), such as "Buke Shohatto" (Decree for the Military Houses), "Sankinkotai" (the system under which feudal lords in the Edo period were required to spend every other year in residence in Edo), and "kaieki" (forfeiture of a rank and properties of a samurai);
第一に大名統制（武家諸法度、参勤交代、改易）がある。