From the period of the Northern and Southern Courts (Japan) to the Muromachi period, groups of small and middle-class samurai such as Musashi-shichito parties (seven parties of samurai in Musashi Province) had formed many kokujin ikki in the Kanto area including shirahata ikki and musashi hei ikki.
南北朝時代から室町時代には、関東地方で武蔵七党など中小武士団による白旗一揆、武蔵平一揆などの国人一揆が盛んに結ばれる。