At that time, Tokimune HOJO, Tokiyori's eldest son (born in 1251), was only six years old, and therefore it was impossible for Tokimune to take over the regency.
時頼の嫡男北条時宗は1251年に誕生していたが、この時はまだ6歳という幼児だった為に執権職を継がせる訳にもいかず、