Hōjō Masako, Japanese regent and onna-bugeisha (b. 1156)
Hōjō Masako (北条 政子, 1156 – August 16, 1225) was Japanese Buddhist nun and politician who exercised significant power in the early years of the Kamakura period, which was reflected by her contemporary sobriquet of the "nun shogun". She was the eldest daughter of Hōjō Tokimasa and sister of Hōjō Yoshitoki, both of them shikkens of the Kamakura shogunate. She was the wife of Minamoto no Yoritomo, and mother of

Minamoto no Yoriie and Minamoto no Sanetomo, the first, second and third shōguns of the Kamakura period.