Under the control of the Edo bakufu, all daimyo were obliged to participate in Sankinkotai (a system under which feudal lords in the Edo period were required to spend every other year in residence in Edo) and to engage in castle construction and flood prevention works.
江戸幕府の支配下、各藩大名に対して参勤交代を強いたり、築城・治水工事を命じたりした。