When Yoritomo was thirty-six years old, three years after moving to Kamakura, Yoriie was born as the long-awaited Onzoshi of the Minamoto clan and his birth received a tremendous celebration by the people.
頼朝36歳、鎌倉入り3年目に待望の源氏の御曹司として、周囲の祝福を一身に受けての誕生であった。