 Maede Toshiie and his successors greatly enlarged Kanazawa Castle and carefully planned the layout of the surrounding jōkamachi to meet strategic and defensive concerns.On April 14, 1631, a fire consumed much of the city, including the castle.In 1632 Maeda Toshitsune ordered the construction of a canal to bring water from the upper Sai River to the castle to alleviate a water shortage problem.