 After the Hōkō @-@ ji temple burned down at the start of the seventeenth century , Toyotomi Hideyori sponsored its reconstruction in 1610 , and commissioned a large bell as part of that process . The bell 's inscription drew the ire of Tokugawa Ieyasu , who had become shogun after wresting power from the Toyotomi clan when Hideyori 's father Hideyoshi died . The inscription , " Kokka ankō " 国家安康 ( " Peace and tranquility for the nation " ) , broke up the characters for the shogun 's name ( 家康 ) with the kanji character for " peace " ( 安 ) . Tokugawa assumed Toyotomi was implying that peace would require the " dismemberment " of the Tokugawa . He used the subsequent dispute as an excuse to wage war on the Toyotomi clan , resulting in the Siege of Osaka and the eventual destruction of the Toyotomi . 
