Bakufu forces fought imperial loyalists at Uji, one of the key gateways into Kyoto; the shogunate’s victory at Uji helped open the way for the capture of the capital and the defeat of Go-Toba’s coalition.
Retired (cloistered) Emperor Go-Toba issued an order calling for action against Kamakura regent Hōjō Yoshitoki, marking the opening move of the Jōkyū War (also known as the Jōkyū Disturbance/Incident).
After the failure of the imperial challenge, Emperor Juntoku was sent into exile on Sado Island, underscoring the shogunate’s strengthened power over the imperial court.
Emperor Chūkyō—installed during the crisis—was dethroned in the aftermath of the Jōkyū War as the shogunate and its allies reshaped succession politics in Kyoto.
With Go-Toba’s line effectively excluded from immediate succession following the conflict, Go-Horikawa was enthroned, reflecting the Kamakura bakufu’s decisive influence over imperial politics.
After the Jōkyū War, the shogunate created the Rokuhara Tandai in Kyoto as a military and administrative headquarters to oversee court affairs, policing, and judicial matters in the capital region.
Hōjō Yasutoki and his uncle Tokifusa became the first Rokuhara Tandai leadership, institutionalizing direct Hōjō oversight of Kyoto after the war.
Following the disturbance, the shogunate confiscated lands from nobles and warriors who supported the imperial side and appointed loyal gokenin as jitō (estate stewards), accelerating the shift of estate authority toward warrior governance.
Regent Hōjō Yoshitoki died, after having consolidated Kamakura authority in the wake of the Jōkyū War and helped entrench Hōjō leadership over both shogunate and court politics.
Regent Hōjō Yasutoki established the Hyōjōshū/Hyōjō council system to broaden consultation and strengthen administrative and judicial governance—an institutional response to the shogunate’s expanded responsibilities after 1221.
By 1225, the shogunal palace and governmental center was reorganized and relocated within Kamakura (near Tsurugaoka Hachimangū), reflecting postwar administrative centralization and evolving governance practices.
Hōjō Yasutoki promulgated the Jōei Formulary / Goseibai Shikimoku, a foundational warrior law code. It is commonly linked to the post-1221 surge in land and legal disputes and the shogunate’s need for clearer adjudication standards.
Jōkyū War and the Suppression of Imperial Resistance (1221–1225)
