a shogunate. Hojo Masako's (Yoritomo's wife) family, the Hōjō, seized power from the Kamakura shoguns. When Yoritomo's sons and heirs were assassinated, the shogun himself became a hereditary figurehead. Real power rested with the Hōjō regents. The Kamakura shogunate lasted for almost 150 years, from 1192 to 1333. The end of the Kamakura shogunate came when Kamakura fell in 1333, and the Hōjō Regency was destroyed. Determined to restore power to the Imperial Court, in 1331 Emperor Go-Daigo tried to overthrow the shogunate. As a result, Daigo was exiled. Around 1334–1336, Ashikaga Takauji helped Daigo regain his throne in the Kenmu Restoration. The fight against the shogunate left the Emperor with too many people claiming a limited supply of land. Takauji turned against the Emperor when the discontent about the distribution of land grew great enough. In 1336 Daigo was banished again, in favor of a new Emperor, leading to the creation of the new Ashikaga shogunate. During the Kenmu Restoration, after the fall of the Kamakura shogunate in 1333, another short-lived shogun arose. Prince Moriyoshi (Morinaga), son of Go-Daigo, was awarded the title of Sei-i Taishōgun. However, Prince Moriyoshi was later put under house arrest and, in 1335, killed by Ashikaga Tadayoshi. Ashikaga (Muromachi) shogunate (1336/1338–1573) In 1336 or 1338, Ashikaga Takauji, like Minamoto no Yoritomo, a descendant of the Minamoto princes, was awarded the title of sei-i taishōgun and established the Ashikaga shogunate, which nominally lasted until 1573. The Ashikaga had their headquarters in the Muromachi district of Kyoto, and the time during which they ruled is also known as the Muromachi period. For the first fifty years of the Shogunate the Ashikaga were unable to assert power over the entire country, as the descendants of Go-Daigo formed a rival court challenging their authority in the Nanboku-chō period. Finally in 1392, the Southern Court surrendered to the Northern Court and the authority of the bakufu. Following the Onin War the power of the Ashikaga Shoguns slowly dwindled and with the start of the Sengoku period were reduced to puppets of various warlords, until ultimately the last Muromachi Shogun, Ashikaga Yoshiaki was deposed in 1573. Azuchi–Momoyama period (1573–1600) With the end of the Ashikaga bakufu Oda Nobunaga and his successor, Toyotomi Hideyoshi, rose to power, governing using the court titles of Imperial Regent and gaining far greater power than any of their predecessors in those offices had. Hideyoshi is