Editing Aomori Prefecture (section)

===Kamakura period===
[[Minamoto no Yoritomo]] incorporated Mutsu Province into the holdings of the Kamakura shogunate.<ref name="Minamoto no Yoritomo captures Mutsu Province">{{cite web |last1=Minamoto |first1=Yoritomo |title=Yoritomo captures Takadate Castle in conquest of Mutsu Province |url=https://www.artic.edu/artworks/32429/lord-minamoto-yoritomo-captures-takadate-castle-in-his-conquest-of-mutsu-province-minamoto-yoritomo-ko-oshu-seibatsu-takadachi-no-shojo-o-koraku-su-and-view-of-the-coast-of-mutsu-province-oshu-kaigan-ichiran |website=www.artic.edu |year=1868 |publisher=Utagawa Kuniteru II |access-date=4 May 2022}}</ref> Nanbu Mitsuyuki was awarded vast estates in [[Nukanobu District]] after he had joined Minamoto no Yoritomo at the [[Battle of Ishibashiyama]] and the conquest of the Northern Fujiwara. Nanbu Mitsuyuki built [[Shōjujidate Castle]] in what is now [[Nanbu, Aomori]].<ref>{{cite web |title=聖寿寺館跡 |trans-title=Shōjojidate ruins |url=https://bunka.nii.ac.jp/heritages/detail/140387 |work=Cultural Heritage Online |publisher=Agency for Cultural Affairs |language=ja |access-date=1 July 2020}}</ref> The eastern area of the current prefecture was dominated by horse ranches, and the Nanbu grew powerful and wealthy on the supply of [[warhorse]]s. These horse ranches were fortified stockades, numbered one through nine (Ichinohe through Kunohe), and were awarded to the six sons of Nanbu Mitsuyuki, forming the six main branches of the [[Nanbu clan]].<ref>{{cite web |title=伝説・地名 |trans-title=Legends and place names |url=https://www.pref.aomori.lg.jp/kids/08_tradition.html |publisher=Aomori Prefecture Government |language=ja |date=20 May 2020 |access-date=8 July 2020}}</ref><ref>{{cite web |date=November 2014 |title=第2次五戸町総合振興計画 |trans-title=Second Gonohe Town Promotion Plan |url=http://www.town.gonohe.aomori.jp/kurashi/kikakushinko/h26_shinkokeikaku_soan.pdf |url-status=dead |archive-url=https://web.archive.org/web/20180129140622/http://www.town.gonohe.aomori.jp/kurashi/kikakushinko/h26_shinkokeikaku_soan.pdf |archive-date=29 January 2018 |access-date=1 July 2020 |work=Gonohe Town Promotion Plan |publisher=Gonohe Town |language=ja}}</ref> The northwestern part of the prefecture was awarded to the [[Akita clan|Andō clan]] for their role in driving the Northern Fujiwara out of Tosaminato. The port was expanded under the rule of the Andō clan. They traded heavily with the Ainu in [[Ezo]]. However, conflict would break out between the Ainu and the Andō clan in 1268 and again in the 1320s. The conflict was put down after the Nanbu intervened at the behest of the shogunate. The conflict weakened the Kamakura shogunate in its later years, while the Andō were split into northern (Andō) and southern (Akita) divisions.<ref>{{cite web |title=陸奥・福島城(青森県・十三湊)の見どころと安藤氏の乱 |date=12 September 2017 |trans-title=Mutsu and Fukushima Castle (Aomori Prefecture, Tosaminato) highlights and the Andō Rebellion |url=https://sirotabi.com/556/#i-3 |language=ja |access-date=1 July 2020}}</ref>