Yoshitoki died in July [[1224]] and his passing inspired a conspiracy by the [[Iga family]], who hoped to use the powerful [[Miura Yoshimura]] to topple the Hôjô and replace them in Kamakura. Masako learned of the threat and personally rushed to see Yoshimura, extracting a promise that he would stand by the Hôjô, effectively derailing the conspiracy before it had begun. Her brother Yasutoki safely assumed the regency, and the following year she died at the age of 69. | Yoshitoki died in July [[1224]] and his passing inspired a conspiracy by the [[Iga family]], who hoped to use the powerful [[Miura Yoshimura]] to topple the Hôjô and replace them in Kamakura. Masako learned of the threat and personally rushed to see Yoshimura, extracting a promise that he would stand by the Hôjô, effectively derailing the conspiracy before it had begun. Her brother Yasutoki safely assumed the regency, and the following year she died at the age of 69. |