At that time, Yoritsune was an infant of little more than 12 months, and therefore real political power was in the hands of Yoshitoki and the shogun's leading immediate vassals, such as Yoshimura MIURA.
頼経は当時生後1年余の幼児であり、当然政治の実権は義時や三浦義村などの有力御家人の手中にあった。