Hōjō Masako
When his father Yoshitoki and aunt Hōjō Masako died, he succeeded to become "shikken" in 1224. He installed Hōjō Tokifusa as the first "rensho". In 1225 he created the Hyōjō (), the council system of the shogunate. In 1232 he promulgated the "Goseibai Shikimoku", the legal code of the shogunate. He has highly praised for his impartial justice.