Editing Shogun (section)

==== Puppetization of the shogun by the ''shikken'' ====
[[File:Dai Nihon Rokujūyoshō, Izu Hōjō Sagaminokami Tokimasa by Yoshitora.jpg|thumb|[[Hōjō Tokimasa]] shifted the source of power in the shogunate from the shogun to the shogun's assistant, ''[[shikken]]'', and established the rule of the [[Hōjō clan]].]]
When Minamoto no Yoriie fell ill in 1203, a power struggle broke out between the [[Hojo clan]] and [[Hiki Yoshikazu]], and Hojo Tokimasa destroyed the [[Hiki clan]]. Tokimasa then installed the 12-year-old [[Minamoto no Sanetomo]] as the third shogun, puppeting him while himself becoming the first {{nihongo3|Regent|執権|[[shikken]]}} and assuming actual control of the shogunate. Hojo Yoshitoki later assassinated Minamoto no Yoriie.<ref name="toutoki"/><ref name="kotoshik"/>

However, Hojo Tokimasa lost influence in 1204 when he killed [[Hatakeyama Shigetada]], believing false information that his son-in-law Shigetada was about to rebel, and lost his position in 1205 when he tried to install his son-in-law Hiraga Tomomasa as the fourth shogun. Hojo Yoshitoki became the second ''shikken'', and the shogunate was administered under the leadership of [[Hojo Masako]].<ref name="toutoki"/><ref name="kotoshik"/>

In 1219, the third shogun, Minamoto no Sanetomo, was assassinated for unknown reasons.<ref name="kotoshik"/>

In 1221, war broke out for the first time in Japan between the warrior class government and the imperial court, and in this battle, known as the [[Jōkyū War]], the shogunate defeated former [[Emperor Go-Toba]].<ref name="kotoshik"/> The shogunate exiled former Emperor Go-Toba to [[Oki Island]] for waging war against the shogunate. The shogunate learned its lesson and set up an administrative body in Kyoto called the {{nihongo3||六波羅探題|[[Rokuhara Tandai]]}} to oversee the imperial court and western Japan.<ref name="touken">{{cite web|url=https://www.touken-world.jp/history/history-important-word/kemmu-no-shinsei/|archive-url=https://web.archive.org/web/20240406003516/https://www.touken-world.jp/history/history-important-word/kemmu-no-shinsei/|script-title=ja:建武の新政|language=ja|publisher=The Nagoya Japanese Sword Museum Nagoya Touken World|date=|archive-date=6 April 2024|access-date=6 April 2024}}</ref>

After the sudden death of Hojo Yoshitoki in 1224, [[Hojo Yasutoki]] became the third ''shikken'', and after the death of Hojo Masako in 1225, the administration of the shogunate returned to a council system.<ref name="kotoshik"/>

In 1226, [[Hojo Yasutoki]] installed [[Kujo Yoritsune]], a member of the [[Sesshō and Kampaku|''sekkan'' family]], as the fourth shogun.<ref name="kotoshik"/>

In 1232, the [[Goseibai Shikimoku]] was enacted, the first codified law by a warrior class government in Japan.<ref name="kotoshik"/>