Utagawa Kuniyoshi (歌川国芳, 1798–1861), "Hōjō Masako" (北条政子), from a biographical warrior or historical series, woodblock print, late Edo period, 19th century. The print portrays Hōjō Masako (北条政子, 1156–1225), widow of Minamoto no Yoritomo and one of the most influential political figures of the early Kamakura period. During the Jōkyū Disturbance of 1221, she famously addressed the assembled gokenin in Kamakura, urging them to defend the shogunate against the forces of the retired emperor Go-Toba. Her speech became one of the defining episodes of the conflict and helped secure the eastern warriors' loyalty to the Hōjō regime.