Matsuyama Castle
In 1627, Katō Yoshiaki was transferred to the Aidzu clan before the completion of Matsuyama Castle. Gamō Tadatomo came to Iyo and completed " ninomaru". in the same year. It had a large five-story "tenshu", or castle keep, which was moved to Aizuwakamatsu Castle. Gamō Tadatomo died in Matsuyama in 1634 without heirs, shortly after completing the "ninomaru", and his domains were forthwith confiscated and the major portion of them bestowed on a Tokugawa Fudai, which was a class of daimyō who were hereditary vassals of Tokugawa family before the Battle of Sekigahara.