Hōjō Masako (1160–1225) was a prominent figure in Japanese history, known for her role as a political leader during the Kamakura period. She was the daughter of Hōjō Tokimasa, the first shikken (regent) of the Kamakura shogunate, and became the wife of Minamoto no Yoritomo, the founder of the shogunate. Masako played a crucial role in the governance of Japan, especially after her husband's death. As a skilled politician, Masako was instrumental in maintaining the power of the Hōjō clan and the shogunate. She was known for her intelligence and strong will, often influencing decisions and policies. Her legacy includes her efforts to support the samurai class and her involvement in the establishment of the Kamakura government, which shaped Japan's feudal system.